diff --git a/en/application-dev/connectivity/figures/IPC_RPC_communication.PNG b/en/application-dev/connectivity/figures/IPC_RPC_communication.PNG
new file mode 100644
index 0000000000000000000000000000000000000000..63f193ade7b3932279295641a5612bc5720befef
Binary files /dev/null and b/en/application-dev/connectivity/figures/IPC_RPC_communication.PNG differ
diff --git a/en/application-dev/device/usb-guidelines.md b/en/application-dev/device/usb-guidelines.md
index 14a7901232865ef8cf9acee55441f92bea0e4f73..64eee37cf1f0e34a58f5805d13be4cec77cb1498 100644
--- a/en/application-dev/device/usb-guidelines.md
+++ b/en/application-dev/device/usb-guidelines.md
@@ -20,13 +20,13 @@ The following table lists the USB APIs currently available. For details, see the
 | getDevices(): Array<Readonly\<USBDevice>>                    | Obtains the list of USB devices connected to the USB host. If no USB device is connected, an empty list is returned. |
 | setConfiguration(pipe: USBDevicePipe, config: USBConfig): number | Sets the USB device configuration.                           |
 | setInterface(pipe: USBDevicePipe, iface: USBInterface): number | Sets a USB interface.                                        |
-| claimInterface(pipe: USBDevicePipe, iface: USBInterface, force?: boolean): number | Claims a USB interface.                                       |
-| bulkTransfer(pipe: USBDevicePipe, endpoint: USBEndpoint, buffer: Uint8Array, timeout?: number): Promise\<number> | Performs bulk transfer.                                      |
+| claimInterface(pipe: USBDevicePipe, iface: USBInterface, force ?: boolean): number | Claims a USB interface.                                       |
+| bulkTransfer(pipe: USBDevicePipe, endpoint: USBEndpoint, buffer: Uint8Array, timeout ?: number): Promise\<number> | Performs bulk transfer.                                      |
 | closePipe(pipe: USBDevicePipe): number                       | Closes a USB device pipe.                                    |
 | releaseInterface(pipe: USBDevicePipe, iface: USBInterface): number | Releases a USB interface.                                    |
 | getFileDescriptor(pipe: USBDevicePipe): number               | Obtains the file descriptor.                                 |
 | getRawDescriptor(pipe: USBDevicePipe): Uint8Array            | Obtains the raw USB descriptor.                              |
-| controlTransfer(pipe: USBDevicePipe, contrlparam: USBControlParams, timeout?: number): Promise\<number> | Performs control transfer.                                   |
+| controlTransfer(pipe: USBDevicePipe, contrlparam: USBControlParams, timeout ?: number): Promise\<number> | Performs control transfer.                                   |
 
 ## How to Develop
 
@@ -51,7 +51,7 @@ You can set a USB device as the USB host to connect to other USB devices for dat
         vendorId: 7531,
         productId: 2,
         clazz: 9,
-        subclass: 0,
+        subClass: 0,
         protocol: 1,
         devAddress: 1,
         busNum: 1,
@@ -68,7 +68,7 @@ You can set a USB device as the USB host to connect to other USB devices for dat
                 id: 0,
                 protocol: 0,
                 clazz: 9,
-                subclass: 0,
+                subClass: 0,
                 alternateSetting: 0,
                 name: "1-1",
                 endpoints: [
@@ -108,7 +108,7 @@ You can set a USB device as the USB host to connect to other USB devices for dat
 
     ```js
     // Open the device, and obtain the USB device pipe for data transfer.
-    let pipe = usb.connectDevice(deviceList[0]);
+    let interface1 = deviceList[0].configs[0].interfaces[0];
     /*
     Claim the corresponding interface from deviceList.
     interface1 must be one present in the device configuration.
@@ -123,28 +123,30 @@ You can set a USB device as the USB host to connect to other USB devices for dat
     Read data. Select the corresponding RX endpoint from deviceList for data transfer.
     (endpoint.direction == 0x80); dataUint8Array indicates the data to read. The data type is Uint8Array.
     */
-    
-    usb.bulkTransfer(pipe, inEndpoint, dataUint8Array, 15000).then(dataLength => {
-    if (dataLength >= 0) {
-      console.info("usb readData result Length : " + dataLength);
-      let resultStr = this.ab2str(dataUint8Array); // Convert uint8 data into a string.
-      console.info("usb readData buffer : " + resultStr);
-    } else {
-      console.info("usb readData failed : " + dataLength);
-    }
-    }).catch(error => {
-    console.info("usb readData error : " + JSON.stringify(error));
-    });
-    // Send data. Select the corresponding TX endpoint from deviceList for data transfer. (endpoint.direction == 0)
-    usb.bulkTransfer(pipe, endpoint, dataUint8Array, 15000).then(dataLength => {
-      if (dataLength >= 0) {
-        console.info("usb writeData result write length : " + dataLength);
-      } else {
-        console.info("writeData failed");
-      }
-    }).catch(error => {
-      console.info("usb writeData error : " + JSON.stringify(error));
-    });
+   let inEndpoint = interface1.endpoints[2];
+   let outEndpoint = interface1.endpoints[1];
+   let dataUint8Array = new Uint8Array(1024);
+   usb.bulkTransfer(pipe, inEndpoint, dataUint8Array, 15000).then(dataLength => {
+   if (dataLength >= 0) {
+     console.info("usb readData result Length : " + dataLength);
+     let resultStr = this.ab2str(dataUint8Array); // Convert uint8 data into a string.
+     console.info("usb readData buffer : " + resultStr);
+   } else {
+     console.info("usb readData failed : " + dataLength);
+   }
+   }).catch(error => {
+   console.info("usb readData error : " + JSON.stringify(error));
+   });
+   // Send data. Select the corresponding TX endpoint from deviceList for data transfer. (endpoint.direction == 0)
+   usb.bulkTransfer(pipe, outEndpoint, dataUint8Array, 15000).then(dataLength => {
+     if (dataLength >= 0) {
+       console.info("usb writeData result write length : " + dataLength);
+     } else {
+       console.info("writeData failed");
+     }
+   }).catch(error => {
+     console.info("usb writeData error : " + JSON.stringify(error));
+   });
     ```
 
 5.  Release the USB interface, and close the USB device.
diff --git a/en/application-dev/reference/apis/js-apis-inputevent.md b/en/application-dev/reference/apis/js-apis-inputevent.md
index d2d55fa57ee6bd71288d03aa3f42e24bebb80bea..d018dd4d9f09add2fe50458f982a99436327acf2 100644
--- a/en/application-dev/reference/apis/js-apis-inputevent.md
+++ b/en/application-dev/reference/apis/js-apis-inputevent.md
@@ -13,6 +13,8 @@ import InputEvent from '@ohos.multimodalInput.inputEvent';
 
 ## InputEvent 
 
+Defines an input event.
+
 **System capability**: SystemCapability.MultimodalInput.Input.Core
 
 **Parameters**
diff --git a/en/application-dev/reference/apis/js-apis-inputmonitor.md b/en/application-dev/reference/apis/js-apis-inputmonitor.md
index 304fa76946de0e4279be5095bd1dae46f79c7ca6..d6514f42799102b15c8e20a978fe71494c281dfd 100644
--- a/en/application-dev/reference/apis/js-apis-inputmonitor.md
+++ b/en/application-dev/reference/apis/js-apis-inputmonitor.md
@@ -203,9 +203,8 @@ try {
   inputMonitor.on("touch", touchEvent => {
     if (touchEvent.touches.length == 3) {// Three fingers are pressed.
       return true;
-    } else {
-      return false;
     }
+    return false;
   });
 } catch (error) {
     console.log(`Monitor on failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
diff --git a/en/application-dev/reference/apis/js-apis-keycode.md b/en/application-dev/reference/apis/js-apis-keycode.md
index e69775942629948eab964f4f91795ddfe7dfeda7..77aa1fe74381a79a6edf3a787da788f1491dc644 100644
--- a/en/application-dev/reference/apis/js-apis-keycode.md
+++ b/en/application-dev/reference/apis/js-apis-keycode.md
@@ -14,6 +14,8 @@ import {KeyCode} from '@ohos.multimodalInput.keyCode';
 
 ## KeyCode
 
+Enumerates keycodes.
+
 **System capability**: SystemCapability.MultimodalInput.Input.Core
 
 | Name                              | Value  |  Description       |
diff --git a/en/application-dev/reference/apis/js-apis-keyevent.md b/en/application-dev/reference/apis/js-apis-keyevent.md
index 32c18a558572b8f971b8faf6277c3300e86f9649..75b857b9fb89599280c11008347145061509bbff 100644
--- a/en/application-dev/reference/apis/js-apis-keyevent.md
+++ b/en/application-dev/reference/apis/js-apis-keyevent.md
@@ -13,6 +13,8 @@ import {Action, Key, KeyEvent} from '@ohos.multimodalInput.keyEvent';
 
 ## Action
 
+Defines a key action.
+
 **System capability**: SystemCapability.MultimodalInput.Input.Core
 
 | Name  | Value | Description    |
@@ -23,6 +25,8 @@ import {Action, Key, KeyEvent} from '@ohos.multimodalInput.keyEvent';
 
 ## Key
 
+Defines a key.
+
 **System capability**: SystemCapability.MultimodalInput.Input.Core
 
 | Name       | Type| Readable| Writable| Description          |
@@ -33,6 +37,8 @@ import {Action, Key, KeyEvent} from '@ohos.multimodalInput.keyEvent';
 
 ## KeyEvent
 
+Defines a key event.
+
 **System capability**: SystemCapability.MultimodalInput.Input.Core
 
 | Name       | Type| Readable| Writable| Description                          |
diff --git a/en/application-dev/reference/apis/js-apis-mouseevent.md b/en/application-dev/reference/apis/js-apis-mouseevent.md
index 92935d6f31e788eb0b71ec6529fbc94264e3d8d1..6ed09f828cec12108e3833b258fe70eb1ab416ad 100644
--- a/en/application-dev/reference/apis/js-apis-mouseevent.md
+++ b/en/application-dev/reference/apis/js-apis-mouseevent.md
@@ -13,6 +13,8 @@ import { Action, Button, Axis, AxisValue, MouseEvent } from '@ohos.multimodalInp
 
 ## Action
 
+Defines a mouse action.
+
 **System capability**: SystemCapability.MultimodalInput.Input.Core
 
 | Name       | Value| Description                |
@@ -28,6 +30,8 @@ import { Action, Button, Axis, AxisValue, MouseEvent } from '@ohos.multimodalInp
 
 ## Button
 
+Enumerates mouse actions.
+
 **System capability**: SystemCapability.MultimodalInput.Input.Core
 
 | Name     | Value | Description   |
@@ -43,6 +47,8 @@ import { Action, Button, Axis, AxisValue, MouseEvent } from '@ohos.multimodalInp
 
 ## Axis
 
+Enumerates mouse axis types.
+
 **System capability**: SystemCapability.MultimodalInput.Input.Core
 
 | Name               | Value    | Description   |
@@ -54,6 +60,8 @@ import { Action, Button, Axis, AxisValue, MouseEvent } from '@ohos.multimodalInp
 
 ## AxisValue
 
+Defines a mouse axis type and value.
+
 **System capability**: SystemCapability.MultimodalInput.Input.Core
 
 | Name   | Type  | Readable  | Writable  | Description  |
@@ -64,6 +72,8 @@ import { Action, Button, Axis, AxisValue, MouseEvent } from '@ohos.multimodalInp
 
 ## MouseEvent
 
+Defines a mouse event.
+
 **System capability**: SystemCapability.MultimodalInput.Input.Core
 
 | Name            | Type       | Readable  | Writable  | Description                                      |
diff --git a/en/application-dev/reference/apis/js-apis-power.md b/en/application-dev/reference/apis/js-apis-power.md
index 4dc07d44197a78f01cb3e9018293cc1da88bea38..625f189f877a620b2238d3cb048ce314f6a2af03 100644
--- a/en/application-dev/reference/apis/js-apis-power.md
+++ b/en/application-dev/reference/apis/js-apis-power.md
@@ -87,7 +87,7 @@ try {
 
 isActive(): boolean
 
-Checks whether the current device is active. In the active state, the screen is on if the device has a screen and the device is not in sleep state if the device does not have a screen.
+Checks whether the current device is active.
 
 **System capability:** SystemCapability.PowerManager.PowerManager.Core
 
@@ -292,6 +292,7 @@ power.setPowerMode(power.DevicePowerMode.MODE_PERFORMANCE)
 
 rebootDevice(reason: string): void
 
+> NOTE<br>
 > This API is deprecated since API version 9. You are advised to use [power.reboot](#powerreboot9) instead.
 
 Reboots the system.
@@ -316,6 +317,7 @@ power.rebootDevice('reboot_test');
 
 isScreenOn(callback: AsyncCallback&lt;boolean&gt;): void
 
+> NOTE<br>
 > This API is deprecated since API version 9. You are advised to use [power.isActive](#powerisactive9) instead.
 
 Checks the screen status of the current device. This API uses an asynchronous callback to return the result.
@@ -344,6 +346,7 @@ power.isScreenOn((err, data) => {
 
 isScreenOn(): Promise&lt;boolean&gt;
 
+> NOTE<br>
 > This API is deprecated since API version 9. You are advised to use [power.isActive](#powerisactive9) instead.
 
 Checks the screen status of the current device. This API uses a promise to return the result.
diff --git a/en/application-dev/reference/apis/js-apis-runninglock.md b/en/application-dev/reference/apis/js-apis-runninglock.md
index ee70e09ca874602bf8e41f3d4001b61caa5a0344..bddad259f782ca6ece549da06ab6ae4e69bbc441 100644
--- a/en/application-dev/reference/apis/js-apis-runninglock.md
+++ b/en/application-dev/reference/apis/js-apis-runninglock.md
@@ -135,6 +135,7 @@ runningLock.create('running_lock_test', runningLock.RunningLockType.BACKGROUND)
 
 isRunningLockTypeSupported(type: RunningLockType, callback: AsyncCallback&lt;boolean&gt;): void
 
+> NOTE<br>
 > This API is deprecated since API version 9. You are advised to use [runningLock.isSupported](#runninglockissupported9) instead.
 
 Checks whether a specified type of **RunningLock** is supported. This API uses an asynchronous callback to return the result.
@@ -164,6 +165,7 @@ runningLock.isRunningLockTypeSupported(runningLock.RunningLockType.BACKGROUND, (
 
 isRunningLockTypeSupported(type: RunningLockType): Promise&lt;boolean>
 
+> NOTE<br>
 > This API is deprecated since API version 9. You are advised to use [runningLock.isSupported](#runninglockissupported9) instead.
 
 Checks whether a specified type of **RunningLock** is supported. This API uses a promise to return the result.
@@ -198,6 +200,7 @@ runningLock.isRunningLockTypeSupported(runningLock.RunningLockType.BACKGROUND)
 
 createRunningLock(name: string, type: RunningLockType, callback: AsyncCallback&lt;RunningLock&gt;): void
 
+> NOTE<br>
 > This API is deprecated since API version 9. You are advised to use [runningLock.create](#runninglockcreate9) instead.
 
 Creates a **RunningLock** object.
@@ -230,6 +233,7 @@ runningLock.createRunningLock('running_lock_test', runningLock.RunningLockType.B
 
 createRunningLock(name: string, type: RunningLockType): Promise&lt;RunningLock&gt;
 
+> NOTE<br>
 > This API is deprecated since API version 9. You are advised to use [runningLock.create](#runninglockcreate9) instead.
 
 Creates a **RunningLock** object.
@@ -389,6 +393,7 @@ runningLock.create('running_lock_test', runningLock.RunningLockType.BACKGROUND)
 
 lock(timeout: number): void
 
+> NOTE<br>
 > This API is deprecated since API version 9. You are advised to use [RunningLock.hold](#hold9) instead.
 
 Locks and holds a **RunningLock** object.
@@ -420,6 +425,7 @@ runningLock.createRunningLock('running_lock_test', runningLock.RunningLockType.B
 
 unlock(): void
 
+> NOTE<br>
 > This API is deprecated since API version 9. You are advised to use [RunningLock.unhold](#unhold9) instead.
 
 Releases a **RunningLock** object.
@@ -445,6 +451,7 @@ runningLock.createRunningLock('running_lock_test', runningLock.RunningLockType.B
 
 isUsed(): boolean
 
+> NOTE<br>
 > This API is deprecated since API version 9. You are advised to use [RunningLock.isHolding](#isholding9) instead.
 
 Checks the hold status of the **Runninglock** object.
diff --git a/en/application-dev/reference/apis/js-apis-sim.md b/en/application-dev/reference/apis/js-apis-sim.md
index eb88ca8c05459fca0ba2ecd4dfcab60d49677aae..0c0243c3dbe85939b1da5623baac1b3137926e15 100644
--- a/en/application-dev/reference/apis/js-apis-sim.md
+++ b/en/application-dev/reference/apis/js-apis-sim.md
@@ -687,7 +687,7 @@ promise.then(data => {
 });
 ```
 
-## sim.**setShowName**<sup>8+</sup>
+## sim.setShowName<sup>8+</sup>
 
 setShowName\(slotId: number, name: string, callback: AsyncCallback<void\>\): void
 
@@ -716,7 +716,7 @@ sim.setShowName(0, name, (err, data) => {
 });
 ```
 
-## sim.**setShowName**<sup>8+</sup>
+## sim.setShowName<sup>8+</sup>
 
 setShowName\(slotId: number, name: string\): Promise\<void\>
 
@@ -753,7 +753,7 @@ promise.then(data => {
 });
 ```
 
-## sim.**getShowName**<sup>8+</sup>
+## sim.getShowName<sup>8+</sup>
 
 getShowName(slotId: number, callback: AsyncCallback<string\>): void
 
@@ -781,7 +781,7 @@ sim.getShowName(0, (err, data) => {
 ```
 
 
-## sim.**getShowName**<sup>8+</sup>
+## sim.getShowName<sup>8+</sup>
 
 getShowName(slotId: number): Promise<string\>
 
@@ -816,7 +816,7 @@ promise.then(data => {
 });
 ```
 
-## sim.**setShowNumber**<sup>8+</sup>
+## sim.setShowNumber<sup>8+</sup>
 
 setShowNumber\(slotId: number, number: string, callback: AsyncCallback<void\>\): void
 
@@ -846,7 +846,7 @@ sim.setShowNumber(0, number, (err, data) => {
 ```
 
 
-## sim.**setShowNumber**<sup>8+</sup>
+## sim.setShowNumber<sup>8+</sup>
 
 setShowNumber\(slotId: number, number: string\): Promise\<void\>
 
@@ -883,7 +883,7 @@ promise.then(data => {
 });
 ```
 
-## sim.**getShowNumber**<sup>8+</sup>
+## sim.getShowNumber<sup>8+</sup>
 
 getShowNumber(slotId: number, callback: AsyncCallback<string\>): void
 
@@ -911,7 +911,7 @@ sim.getShowNumber(0, (err, data) => {
 ```
 
 
-## sim.**getShowNumber**<sup>8+</sup>
+## sim.getShowNumber<sup>8+</sup>
 
 getShowNumber(slotId: number): Promise<string\>
 
@@ -946,7 +946,7 @@ promise.then(data => {
 });
 ```
 
-## sim.**activateSim**<sup>8+</sup>
+## sim.activateSim<sup>8+</sup>
 
 activateSim(slotId: number, callback: AsyncCallback<void\>): void
 
@@ -974,7 +974,7 @@ sim.activateSim(0, (err, data) => {
 ```
 
 
-## sim.**activateSim**<sup>8+</sup>
+## sim.activateSim<sup>8+</sup>
 
 activateSim(slotId: number): Promise\<void\>
 
@@ -1009,7 +1009,7 @@ promise.then(data => {
 });
 ```
 
-## sim.**deactivateSim**<sup>8+</sup>
+## sim.deactivateSim<sup>8+</sup>
 
 deactivateSim(slotId: number, callback: AsyncCallback<void\>): void
 
@@ -1037,7 +1037,7 @@ sim.deactivateSim(0, (err, data) => {
 ```
 
 
-## sim.**deactivateSim**<sup>8+</sup>
+## sim.deactivateSim<sup>8+</sup>
 
 deactivateSim(slotId: number): Promise\<void\>
 
@@ -1346,7 +1346,7 @@ promise.then(data => {
 });
 ```
 
-## sim.**unlockPin**<sup>7+</sup>
+## sim.unlockPin<sup>7+</sup>
 
 unlockPin(slotId: number, pin: string, callback: AsyncCallback<LockStatusResponse\>): void
 
@@ -1376,7 +1376,7 @@ sim.unlockPin(0, pin, (err, data) => {
 ```
 
 
-## sim.**unlockPin**<sup>7+</sup>
+## sim.unlockPin<sup>7+</sup>
 
 unlockPin(slotId: number, pin: string): Promise&lt;LockStatusResponse\>
 
@@ -1413,7 +1413,7 @@ promise.then(data => {
 });
 ```
 
-## sim.**unlockPuk**<sup>7+</sup>
+## sim.unlockPuk<sup>7+</sup>
 
 unlockPuk(slotId: number, newPin: string, puk: string ,callback: AsyncCallback<LockStatusResponse\>): void
 
@@ -1445,7 +1445,7 @@ sim.unlockPuk(0, newPin, puk, (err, data) => {
 ```
 
 
-## sim.**unlockPuk**<sup>7+</sup>
+## sim.unlockPuk<sup>7+</sup>
 
 unlockPuk(slotId: number, newPin: string, puk: string): Promise&lt;LockStatusResponse\>
 
@@ -1484,7 +1484,7 @@ promise.then(data => {
 });
 ```
 
-## sim.**unlockPin**2<sup>8+</sup>
+## sim.unlockPin2<sup>8+</sup>
 
 unlockPin2(slotId: number, pin2: string, callback: AsyncCallback<LockStatusResponse\>): void
 
@@ -1514,7 +1514,7 @@ sim.unlockPin2(0, pin2, (err, data) => {
 ```
 
 
-## sim.**unlockPin**2<sup>8+</sup>
+## sim.unlockPin2<sup>8+</sup>
 
 unlockPin2(slotId: number, pin2: string): Promise&lt;LockStatusResponse\>
 
@@ -1551,7 +1551,7 @@ promise.then(data => {
 });
 ```
 
-## sim.**unlockPuk**2<sup>8+</sup>
+## sim.unlockPuk2<sup>8+</sup>
 
 unlockPuk2(slotId: number, newPin2: string, puk2: string, callback: AsyncCallback<LockStatusResponse\>): void
 
@@ -1583,7 +1583,7 @@ sim.unlockPuk2(0, newPin2, puk2, (err, data) => {
 ```
 
 
-## sim.**unlockPuk2**<sup>8+</sup>
+## sim.unlockPuk2<sup>8+</sup>
 
 unlockPuk2(slotId: number, newPin2: string, puk2: string): Promise&lt;LockStatusResponse\>
 
diff --git a/en/application-dev/reference/apis/js-apis-thermal.md b/en/application-dev/reference/apis/js-apis-thermal.md
index 514e7062cd649d8bf5b92261bceeb7cbed870166..5291826d6fab799eb0684753379399562772f4cf 100644
--- a/en/application-dev/reference/apis/js-apis-thermal.md
+++ b/en/application-dev/reference/apis/js-apis-thermal.md
@@ -118,6 +118,7 @@ try {
 
 subscribeThermalLevel(callback: AsyncCallback&lt;ThermalLevel&gt;): void
 
+> NOTE<br>
 > This API is deprecated since API version 9. You are advised to use [thermal.registerThermalLevelCallback](#thermalregisterthermallevelcallback9) instead.
 
 Subscribes to thermal level changes.
@@ -142,6 +143,7 @@ thermal.subscribeThermalLevel((level) => {
 
 unsubscribeThermalLevel(callback?: AsyncCallback\<void>): void
 
+> NOTE<br>
 > This API is deprecated since API version 9. You are advised to use [thermal.unregisterThermalLevelCallback](#thermalunregisterthermallevelcallback9) instead.
 
 Unsubscribes from thermal level changes.
@@ -166,6 +168,7 @@ thermal.unsubscribeThermalLevel(() => {
 
 getThermalLevel(): ThermalLevel
 
+> NOTE<br>
 > This API is deprecated since API version 9. You are advised to use [thermal.getLevel](#thermalgetlevel9) instead.
 
 Obtains the current thermal level.
diff --git a/en/application-dev/reference/apis/js-apis-touchevent.md b/en/application-dev/reference/apis/js-apis-touchevent.md
index ae49b428e00c4c22ed126ecc539290a692b69696..e66c1569fb5fae99e9124183e02b4ed32fb46d9c 100644
--- a/en/application-dev/reference/apis/js-apis-touchevent.md
+++ b/en/application-dev/reference/apis/js-apis-touchevent.md
@@ -13,6 +13,8 @@ import {Action,ToolType,SourceType,Touch,TouchEvent} from '@ohos.multimodalInput
 
 ## Action
 
+Enumerates touch actions.
+
 **System capability**: SystemCapability.MultimodalInput.Input.Core
 
 | Name   | Value | Description |
@@ -24,6 +26,8 @@ import {Action,ToolType,SourceType,Touch,TouchEvent} from '@ohos.multimodalInput
 
 ## ToolType
 
+Enumerates tool types.
+
 **System capability**: SystemCapability.MultimodalInput.Input.Core
 
 | Name | Value | Description |
@@ -39,6 +43,8 @@ import {Action,ToolType,SourceType,Touch,TouchEvent} from '@ohos.multimodalInput
 
 ## SourceType 
 
+Enumerates source types.
+
 **System capability**: SystemCapability.MultimodalInput.Input.Core
 
 | Name | Value | Description |
@@ -49,6 +55,8 @@ import {Action,ToolType,SourceType,Touch,TouchEvent} from '@ohos.multimodalInput
 
 ## Touch
 
+Defines a touch action.
+
 **System capability**: SystemCapability.MultimodalInput.Input.Core
 
 | Name| Type| Readable| Writable| Description|
@@ -74,6 +82,8 @@ import {Action,ToolType,SourceType,Touch,TouchEvent} from '@ohos.multimodalInput
 
 ## TouchEvent
 
+Defines a touch event.
+
 **System capability**: SystemCapability.MultimodalInput.Input.Core
 
 | Name| Type| Readable| Writable| Description|
diff --git a/en/application-dev/reference/apis/js-apis-usb-deprecated.md b/en/application-dev/reference/apis/js-apis-usb-deprecated.md
index 68a127a08bdfd1df0ca558866dc3cde577e2b25a..95eb105b0a25fc824b4f7762a73e035283097ddc 100644
--- a/en/application-dev/reference/apis/js-apis-usb-deprecated.md
+++ b/en/application-dev/reference/apis/js-apis-usb-deprecated.md
@@ -43,7 +43,7 @@ console.log(`devicesList = ${JSON.stringify(devicesList)}`);
     vendorId: 7531,
     productId: 2,
     clazz: 9,
-    subclass: 0,
+    subClass: 0,
     protocol: 1,
     devAddress: 1,
     busNum: 1,
@@ -60,7 +60,7 @@ console.log(`devicesList = ${JSON.stringify(devicesList)}`);
             id: 0,
             protocol: 0,
             clazz: 9,
-            subclass: 0,
+            subClass: 0,
             alternateSetting: 0,
             name: "1-1",
             endpoints: [
@@ -171,7 +171,7 @@ usb.requestRight(devicesName).then((ret) => {
 
 ## usb.claimInterface
 
-claimInterface(pipe: USBDevicePipe, iface: USBInterface, force?: boolean): number
+claimInterface(pipe: USBDevicePipe, iface: USBInterface, force ?: boolean): number
 
 Claims a USB interface.
 
@@ -348,7 +348,7 @@ let ret = usb.getFileDescriptor(devicepipe);
 
 ## usb.controlTransfer
 
-controlTransfer(pipe: USBDevicePipe, controlparam: USBControlParams, timeout?: number): Promise&lt;number&gt;
+controlTransfer(pipe: USBDevicePipe, controlparam: USBControlParams, timeout ?: number): Promise&lt;number&gt;
 
 Performs control transfer.
 
@@ -380,7 +380,7 @@ usb.controlTransfer(devicepipe, USBControlParams).then((ret) => {
 
 ## usb.bulkTransfer
 
-bulkTransfer(pipe: USBDevicePipe, endpoint: USBEndpoint, buffer: Uint8Array, timeout?: number): Promise&lt;number&gt;
+bulkTransfer(pipe: USBDevicePipe, endpoint: USBEndpoint, buffer: Uint8Array, timeout ?: number): Promise&lt;number&gt;
 
 Performs bulk transfer.
 
diff --git a/en/application-dev/reference/apis/js-apis-usb.md b/en/application-dev/reference/apis/js-apis-usb.md
index 9035d2d040209f44a019fb69b3da6edc49b481b3..358b80bf5b14d89773bb64ade4c5e833de6afa59 100644
--- a/en/application-dev/reference/apis/js-apis-usb.md
+++ b/en/application-dev/reference/apis/js-apis-usb.md
@@ -42,7 +42,7 @@ console.log(`devicesList = ${JSON.stringify(devicesList)}`);
     vendorId: 7531,
     productId: 2,
     clazz: 9,
-    subclass: 0,
+    subClass: 0,
     protocol: 1,
     devAddress: 1,
     busNum: 1,
@@ -59,7 +59,7 @@ console.log(`devicesList = ${JSON.stringify(devicesList)}`);
             id: 0,
             protocol: 0,
             clazz: 9,
-            subclass: 0,
+            subClass: 0,
             alternateSetting: 0,
             name: "1-1",
             endpoints: [
@@ -252,7 +252,7 @@ if (usb.addRight(bundleName, devicesName) {
 
 ## usb.claimInterface
 
-claimInterface(pipe: USBDevicePipe, iface: USBInterface, force?: boolean): number
+claimInterface(pipe: USBDevicePipe, iface: USBInterface, force ?: boolean): number
 
 Claims a USB interface.
 
@@ -429,7 +429,7 @@ let ret = usb.getFileDescriptor(devicepipe);
 
 ## usb.controlTransfer
 
-controlTransfer(pipe: USBDevicePipe, controlparam: USBControlParams, timeout?: number): Promise&lt;number&gt;
+controlTransfer(pipe: USBDevicePipe, controlparam: USBControlParams, timeout ?: number): Promise&lt;number&gt;
 
 Performs control transfer.
 
@@ -461,7 +461,7 @@ usb.controlTransfer(devicepipe, USBControlParams).then((ret) => {
 
 ## usb.bulkTransfer
 
-bulkTransfer(pipe: USBDevicePipe, endpoint: USBEndpoint, buffer: Uint8Array, timeout?: number): Promise&lt;number&gt;
+bulkTransfer(pipe: USBDevicePipe, endpoint: USBEndpoint, buffer: Uint8Array, timeout ?: number): Promise&lt;number&gt;
 
 Performs bulk transfer.
 
diff --git a/en/device-dev/subsystems/subsys-dfx-hisysevent-tool.md b/en/device-dev/subsystems/subsys-dfx-hisysevent-tool.md
index cb0f8cead65cd1faed98c723d30f557b4302bbab..7d478081dd4bf3f5a88505ed6181919836446688 100644
--- a/en/device-dev/subsystems/subsys-dfx-hisysevent-tool.md
+++ b/en/device-dev/subsystems/subsys-dfx-hisysevent-tool.md
@@ -9,7 +9,7 @@ The HiSysEvent tool is a command line tool preconfigured in the **/system/bin**
 
 - Command for subscribing to real-time system events:
 
-    ```
+    ```shell
     hisysevent -r
     ```
 
@@ -21,7 +21,7 @@ The HiSysEvent tool is a command line tool preconfigured in the **/system/bin**
 
 - Command for enabling the debugging mode:
 
-    ```
+    ```shell
     hisysevent -r -d
     ```
 
@@ -29,11 +29,11 @@ The HiSysEvent tool is a command line tool preconfigured in the **/system/bin**
 
     | Option| Description|
     | -------- | -------- |
-    | -d | Subscription to real-time system events in debugging mode.|
+    | -d | Subscribes to real-time system events in debugging mode.|
 
 - Command for subscribing to real-time system events by event tag:
 
-    ```
+    ```shell
     hisysevent -r -t <tag> [-c [WHOLE_WORD|PREFIX|REGULAR]]
     ```
 
@@ -42,12 +42,12 @@ The HiSysEvent tool is a command line tool preconfigured in the **/system/bin**
     | Option| Description|
     | -------- | -------- |
     | -t | Event tag used to filter subscribed real-time system events.|
-    | -c | Matching rule for event tags. The option can be **WHOLE_WORD**, **PREFIX**, or **REGULAR**.|
+    | -c | Matching rule for event tags. The options can be **WHOLE_WORD**, **PREFIX**, or **REGULAR**.|
 
     Example:
 
-    ```
-	# hisysevent -r -t "STA" -c PREFIX
+    ```shell
+    # hisysevent -r -t "STA" -c PREFIX
     {"domain_":"RELIABILITY","name_":"APP_FREEZE","type_":1,"time_":1501963670809,"pid_":1505,"uid_":10002,"FAULT_TYPE":"4","MODULE":"com.ohos.screenlock","REASON":"NO_DRAW","SUMMARY":"SUMMARY:\n","LOG_PATH":"/data/log/faultlog/faultlogger/appfreeze-com.ohos.screenlock-10002-20170805200750","HAPPEN_TIME":1501963670809,"VERSION":"1.0.0","level_":"CRITICAL","tag_":"STABILITY","id_":"4973863135535405472","info_":""}
     # hisysevent -r -t "STAw{0,6}" -c REGULAR
     {"domain_":"RELIABILITY","name_":"APP_FREEZE","type_":1,"time_":1501963793206,"pid_":1505,"uid_":10002,"FAULT_TYPE":"4","MODULE":"com.ohos.screenlock","REASON":"NO_DRAW","SUMMARY":"SUMMARY:\n","LOG_PATH":"/data/log/faultlog/faultlogger/appfreeze-com.ohos.screenlock-10002-20170805200953","HAPPEN_TIME":1501963793206,"VERSION":"1.0.0","level_":"CRITICAL","tag_":"STABILITY","id_":"16367997008075110557","info_":""}
@@ -57,7 +57,7 @@ The HiSysEvent tool is a command line tool preconfigured in the **/system/bin**
 
 - Command for subscribing to real-time system events by event domain and event name:
 
-    ```
+    ```shell
     hisysevent -r -o <domain> -n <eventName> [-c [WHOLE_WORD|PREFIX|REGULAR]]
     ```
 
@@ -67,11 +67,11 @@ The HiSysEvent tool is a command line tool preconfigured in the **/system/bin**
     | -------- | -------- |
     | -o | Event domain used to filter subscribed real-time system events.|
     | -n | Event name used to filter subscribed real-time system events.|
-    | -c | Matching rule for event domains and event names. The option can be **WHOLE_WORD**, PREFIX, or **REGULAR**.|
+    | -c | Matching rule for event domains and event names. The options can be **WHOLE_WORD**, PREFIX, or **REGULAR**.|
 
     Example:
 
-    ```
+    ```shell
     # hisysevent -r -o "RELIABILITY" -n "APP_FREEZE"
     {"domain_":"RELIABILITY","name_":"APP_FREEZE","type_":1,"time_":1501963989773,"pid_":1505,"uid_":10002,"FAULT_TYPE":"4","MODULE":"com.ohos.screenlock","REASON":"NO_DRAW","SUMMARY":"SUMMARY:\n","LOG_PATH":"/data/log/faultlog/faultlogger/appfreeze-com.ohos.screenlock-10002-20170805201309","HAPPEN_TIME":1501963989773,"VERSION":"1.0.0","level_":"CRITICAL","tag_":"STABILITY","id_":"16367997008075110557","info_":""}
     # hisysevent -r -o "RELIABI\w{0,8}" -n "APP_FREEZE" -c REGULAR
@@ -85,7 +85,7 @@ The HiSysEvent tool is a command line tool preconfigured in the **/system/bin**
 
 - Command for subscribing to real-time system events by event type:
 
-    ```
+    ```shell
     hisysevent -r -g [FAULT|STATISTIC|SECURITY|BEHAVIOR]
     ```
 
@@ -97,7 +97,7 @@ The HiSysEvent tool is a command line tool preconfigured in the **/system/bin**
 
     Example:
 
-    ```
+    ```shell
     # hisysevent -r -o "RELIABILITY" -n "APP_FREEZE" -g FAULT
     {"domain_":"RELIABILITY","name_":"APP_FREEZE","type_":1,"time_":1501963989773,"pid_":1505,"uid_":10002,"FAULT_TYPE":"4","MODULE":"com.ohos.screenlock","REASON":"NO_DRAW","SUMMARY":"SUMMARY:\n","LOG_PATH":"/data/log/faultlog/faultlogger/appfreeze-com.ohos.screenlock-10002-20170805201309","HAPPEN_TIME":1501963989773,"VERSION":"1.0.0","level_":"CRITICAL","tag_":"STABILITY","id_":"16367997008075110557","info_":""}
     # hisysevent -r -o "POWER\w{0,8}" -n "POWER_RUNNINGLOCK" -c REGULAR -g STATISTIC
@@ -108,11 +108,12 @@ The HiSysEvent tool is a command line tool preconfigured in the **/system/bin**
     {"domain_":"MULTIMODALINPUT","name_":"Z_ORDER_WINDOW_CHANGE","type_":4,"time_":1667549852735,"tz_":"+0000","pid_":2577,"tid_":2588,"uid_":6696,"OLD_ZORDER_FIRST_WINDOWID":-1,"NEW_ZORDER_FIRST_WINDOWID":2,"OLD_ZORDER_FIRST_WINDOWPID":-1,"NEW_ZORDER_FIRST_WINDOWPID":1458,"MSG":"The ZorderFirstWindow changing succeeded","level_":"MINOR","tag_":"PowerStats","id_":"16847308118559691400","info_":""}
     ```
 
+
 ## Querying Historical System Events
 
 - Command for querying historical system events:
 
-    ```
+    ```shell
     hisysevent -l
     ```
 
@@ -124,7 +125,7 @@ The HiSysEvent tool is a command line tool preconfigured in the **/system/bin**
 
 - Command for querying historical system events within the specified period of time:
 
-    ```
+    ```shell
     hisysevent -l -s <begin time> -e <end time>
     ```
 
@@ -132,21 +133,46 @@ The HiSysEvent tool is a command line tool preconfigured in the **/system/bin**
 
     | Option| Description|
     | -------- | -------- |
-    | -s | Start time for querying historical system events. Only system events generated after the start time are returned.|
-    | -e | End time for querying historical system events. Only system events generated before the end time are returned.|
+    | -s | Original start timestamp for querying historical system events. Only system events generated after the start time are returned.|
+    | -e | Original end timestamp for querying historical system events. Only system events generated before the end time are returned.|
 
     Example:
 
-    ```
+    ```shell
     # hisysevent -l -s 1501964222980 -e 1501964222996
     {"domain_":"RELIABILITY","name_":"APP_FREEZE","type_":1,"time_":1501964222980,"pid_":1505,"uid_":10002,"FAULT_TYPE":"4","MODULE":"com.ohos.screenlock","REASON":"NO_DRAW","SUMMARY":"SUMMARY:\n","LOG_PATH":"/data/log/faultlog/faultlogger/appfreeze-com.ohos.screenlock-10002-20170805201702","HAPPEN_TIME":1501964222980,"VERSION":"1.0.0","level_":"CRITICAL","tag_":"STABILITY","id_":"10435592800188571430","info_":""}
     {"domain_":"GRAPHIC","name_":"NO_DRAW","type_":1,"time_":1501964222980,"tz_":"+0000","pid_":1505,"tid_":1585,"uid_":10002,"PID":1505,"UID":10002,"ABILITY_NAME":"","MSG":"It took 1957104259905ns to draw, UI took 0ns to draw, RSRenderThread took 8962625ns to draw, RSRenderThread dropped 0 UI Frames","level_":"MINOR","id_":"1708287249901948387","info_":"isResolved,eventId:0"}
     {"domain_":"RELIABILITY","name_":"APP_FREEZE","type_":1,"time_":1501964222994,"tz_":"+0000","pid_":623,"tid_":1445,"uid_":1201,"SUB_EVENT_TYPE":"NO_DRAW","EVENT_TIME":"20170805201702","MODULE":"NO_DRAW","PNAME":"NO_DRAW","REASON":"NO_DRAW","DIAG_INFO":"","STACK":"SUMMARY:\n","HIVIEW_LOG_FILE_PATHS":["/data/log/faultlog/faultlogger/appfreeze-NO_DRAW-10002-20170805201702"],"DOMAIN":"GRAPHIC","STRING_ID":"NO_DRAW","PID":1505,"UID":10002,"PACKAGE_NAME":"NO_DRAW","PROCESS_NAME":"","MSG":"It took 1956945826265ns to draw, UI took 0ns to draw, RSRenderThread took 9863293ns to draw, RSRenderThread dropped 0 UI Frames\n","level_":"CRITICAL","tag_":"STABILITY","id_":"10448522101019619655","info_":""}
     ```
 
-- Command for setting the maximum number of historical events that can be queried:
+- Command for querying historical system events within the specified period of time:
 
+    ```shell
+    hisysevent -l -S <begin time> -E <end time>
     ```
+
+    Description of command options:
+
+    | Option| Description|
+    | -------- | -------- |
+    | -S | Original start timestamp for querying historical system events. Only system events generated after the start time are returned.|
+    | -E | Original end timestamp for querying historical system events. Only system events generated after the start time are returned.|
+
+    Example:
+
+    ```shell
+    # hisysevent -l -S "2023-01-05 14:12:50" -E "2023-01-05 14:12:51"
+    {"domain_":"GRAPHIC","name_":"JANK_FRAME_SKIP","type_":1,"time_":1672899170022,"tz_":"+0800","pid_":1499,"tid_":1573,"uid_":20010037,"PID":1499,"UID":20010037,"ABILITY_NAME":"com.ohos.launcher","MSG":"It took 587948726ns to draw, UI took 483016382ns to draw, RSRenderThread took 96616051ns to draw, RSRenderThread dropped 0 UI Frames","level_":"MINOR","id_":"11351278822867091090","info_":"","seq_":307}
+    {"domain_":"AAFWK","name_":"START_ABILITY_ERROR","type_":1,"time_":1672899170108,"tz_":"+0800","pid_":550,"tid_":1127,"uid_":5523,"USER_ID":-1,"BUNDLE_NAME":"com.ohos.wallpaper","MODULE_NAME":"","ABILITY_NAME":"WallpaperExtAbility","ERROR_CODE":2097152,"level_":"MINOR","tag_":"ability","id_":"53589395004188308060","info_":"","seq_":313}
+    {"domain_":"GRAPHIC","name_":"JANK_FRAME_SKIP","type_":1,"time_":1672899170305,"tz_":"+0800","pid_":1293,"tid_":1632,"uid_":10006,"PID":1293,"UID":10006,"ABILITY_NAME":"com.ohos.systemui","MSG":"It took 309597490ns to draw, UI took 92364718ns to draw, RSRenderThread took 205874105ns to draw, RSRenderThread dropped 1 UI Frames","level_":"MINOR","id_":"14843220972178010722","info_":"","seq_":314}
+    {"domain_":"GRAPHIC","name_":"JANK_FRAME_SKIP","type_":1,"time_":1672899170350,"tz_":"+0800","pid_":1293,"tid_":1632,"uid_":10006,"PID":1293,"UID":10006,"ABILITY_NAME":"com.ohos.systemui","MSG":"It took 259782859ns to draw, UI took 33909753ns to draw, RSRenderThread took 44849879ns to draw, RSRenderThread dropped 5 UI Frames","level_":"MINOR","id_":"66610006717219916560","info_":"","seq_":315}
+    {"domain_":"AAFWK","name_":"CONNECT_SERVICE_ERROR","type_":1,"time_":1672899170733,"tz_":"+0800","pid_":550,"tid_":1127,"uid_":5523,"USER_ID":100,"BUNDLE_NAME":"com.ohos.wallpaper","MODULE_NAME":"","ABILITY_NAME":"WallpaperExtAbility","ERROR_CODE":2097152,"level_":"MINOR","tag_":"ability","id_":"10040008376311927188","info_":"","seq_":317}
+    {"domain_":"COMMONEVENT","name_":"PUBLISH","type_":2,"time_":1672899170063,"tz_":"+0800","pid_":550,"tid_":937,"uid_":5523,"USER_ID":-1,"PUBLISHER_BUNDLE_NAME":"","PID":0,"UID":1101,"EVENT_NAME":"usual.event.SCREEN_ON","level_":"MINOR","id_":"80996758983032931610","info_":"","seq_":308}
+    ```
+
+- Command for setting the maximum number of historical events that can be queried:
+
+    ```shell
     hisysevent -l -m <max hisysevent count>
     ```
 
@@ -158,14 +184,14 @@ The HiSysEvent tool is a command line tool preconfigured in the **/system/bin**
 
     Example:
 
-    ```
+    ```shell
     # hisysevent -l -s 1501964222980 -e 1501964222996 -m 1
     {"domain_":"RELIABILITY","name_":"APP_FREEZE","type_":1,"time_":1501964222980,"pid_":1505,"uid_":10002,"FAULT_TYPE":"4","MODULE":"com.ohos.screenlock","REASON":"NO_DRAW","SUMMARY":"SUMMARY:\n","LOG_PATH":"/data/log/faultlog/faultlogger/appfreeze-com.ohos.screenlock-10002-20170805201702","HAPPEN_TIME":1501964222980,"VERSION":"1.0.0","level_":"CRITICAL","tag_":"STABILITY","id_":"10435592800188571430","info_":""}
     ```
 
 - Command for querying historical system events by event domain and event name:
 
-    ```
+    ```shell
     hisysevent -l -o <domain> -n <eventName> [-c WHOLE_WORD]
     ```
 
@@ -173,24 +199,24 @@ The HiSysEvent tool is a command line tool preconfigured in the **/system/bin**
 
     | Option| Description|
     | -------- | -------- |
-    | -o | Domain based on which historical system events are queried.|
-    | -n | Name based on which historical system events are queried.|
+    | -o | Event domain based on which historical system events are queried.|
+    | -n | Event name based on which historical system events are queried.|
     | -c | Rule for matching the domain and name of historical system events. The option can only be **WHOLE_WORD**.|
 
     Example:
 
-    ```
+    ```shell
     # hisysevent -l -n "APP_FREEZE"
     {"domain_":"RELIABILITY","name_":"APP_FREEZE","type_":1,"time_":1501963989773,"pid_":1505,"uid_":10002,"FAULT_TYPE":"4","MODULE":"com.ohos.screenlock","REASON":"NO_DRAW","SUMMARY":"SUMMARY:\n","LOG_PATH":"/data/log/faultlog/faultlogger/appfreeze-com.ohos.screenlock-10002-20170805201309","HAPPEN_TIME":1501963989773,"VERSION":"1.0.0","level_":"CRITICAL","tag_":"STABILITY","id_":"16367997008075110557","info_":""}
-    # hisysevent -r -o "RELIABILITY"
+    # hisysevent -l -o "RELIABILITY"
     {"domain_":"RELIABILITY","name_":"APP_FREEZE","type_":1,"time_":1501963989773,"pid_":1505,"uid_":10002,"FAULT_TYPE":"4","MODULE":"com.ohos.screenlock","REASON":"NO_DRAW","SUMMARY":"SUMMARY:\n","LOG_PATH":"/data/log/faultlog/faultlogger/appfreeze-com.ohos.screenlock-10002-20170805201544","HAPPEN_TIME":1501963989773,"VERSION":"1.0.0","level_":"CRITICAL","tag_":"STABILITY","id_":"13456525196455104060","info_":""}
-    # hisysevent -r -o "RELIABILITY" -n "APP_FREEZE" -c WHOLE_WORD
+    # hisysevent -l -o "RELIABILITY" -n "APP_FREEZE" -c WHOLE_WORD
     {"domain_":"RELIABILITY","name_":"APP_FREEZE","type_":1,"time_":1501963989773,"pid_":1505,"uid_":10002,"FAULT_TYPE":"4","MODULE":"com.ohos.screenlock","REASON":"NO_DRAW","SUMMARY":"SUMMARY:\n","LOG_PATH":"/data/log/faultlog/faultlogger/appfreeze-com.ohos.screenlock-10002-20170805201633","HAPPEN_TIME":1501963989773,"VERSION":"1.0.0","level_":"CRITICAL","tag_":"STABILITY","id_":"12675246910904037271","info_":""}
     ```
 
 - Command for querying historical system events by event type:
 
-    ```
+    ```shell
     hisysevent -l -g [FAULT|STATISTIC|SECURITY|BEHAVIOR]
     ```
 
@@ -202,7 +228,7 @@ The HiSysEvent tool is a command line tool preconfigured in the **/system/bin**
 
     Example:
 
-    ```
+    ```shell
     # hisysevent -l -o "RELIABILITY" -g FAULT
     {"domain_":"RELIABILITY","name_":"APP_FREEZE","type_":1,"time_":1501963989773,"pid_":1505,"uid_":10002,"FAULT_TYPE":"4","MODULE":"com.ohos.screenlock","REASON":"NO_DRAW","SUMMARY":"SUMMARY:\n","LOG_PATH":"/data/log/faultlog/faultlogger/appfreeze-com.ohos.screenlock-10002-20170805201309","HAPPEN_TIME":1501963989773,"VERSION":"1.0.0","level_":"CRITICAL","tag_":"STABILITY","id_":"16367997008075110557","info_":""}
     # hisysevent -l -n "POWER_RUNNINGLOCK" -c WHOLE_WORD -g STATISTIC
@@ -215,9 +241,9 @@ The HiSysEvent tool is a command line tool preconfigured in the **/system/bin**
 
 ## System Event Validity Check
 
-- Enabling system event validity check
+- Command for enabling system event validity check
 
-    ```
+    ```shell
     hisysevent -v
     ```
 	
@@ -229,7 +255,7 @@ The HiSysEvent tool is a command line tool preconfigured in the **/system/bin**
 
     Example:
 
-    ```
+    ```shell
     # hisysevent -v -l -s 1501964222980 -e 1501964222996
     # The **HAPPEN_TIME** and **VERSION** fields are not configured in the YAML file for the **APP_FREEZE** event that belongs to the **RELIABILITY** domain. Therefore, the two fields are highlighted in red.
     {"domain_":"RELIABILITY","name_":"APP_FREEZE","type_":1,"time_":1501964222980,"pid_":1505,"uid_":10002,"FAULT_TYPE":"4","MODULE":"com.ohos.screenlock","REASON":"NO_DRAW","SUMMARY":"SUMMARY:\n","LOG_PATH":"/data/log/faultlog/faultlogger/appfreeze-com.ohos.screenlock-10002-20170805201702","HAPPEN_TIME":1501964222980,"VERSION":"1.0.0","level_":"CRITICAL","tag_":"STABILITY","id_":"10435592800188571430","info_":""}