diff --git a/en/application-dev/reference/apis/js-apis-power.md b/en/application-dev/reference/apis/js-apis-power.md
index 2ce2a524466f977390159aba37967e419f588185..d3e6377b84992a2ba21a0ed8d5e544fe80058068 100644
--- a/en/application-dev/reference/apis/js-apis-power.md
+++ b/en/application-dev/reference/apis/js-apis-power.md
@@ -23,9 +23,9 @@ shutdownDevice(reason: string): void
Shuts down the system.
-**Required permission:** ohos.permission.SHUTDOWN
+This is a system API and cannot be called by third-party applications.
-**Note:** This is a system API and it is used only for system applications.
+**Required permission:** ohos.permission.SHUTDOWN
**Parameters**
@@ -71,7 +71,7 @@ Checks the screen status of the current device.
**Parameters**
-| Type | Type | Mandatory | Description |
+| Name | Type | Mandatory | Description |
| -------- | ---------------------------- | ---- | ---------------------------------------- |
| callback | AsyncCallback<boolean> | Yes | Callback used to obtain the return value.
Return value: The value **true** indicates that the screen is on, and the value **false** indicates the opposite.|
@@ -97,7 +97,7 @@ Checks the screen status of the current device.
**Return Value**
| Type | Description |
| ---------------------- | --------------------------------------- |
-| Promise<boolean> | Promise used to obtain the return value.
Return value: The value **true** indicates that the screen is on, and the value **false** indicates the opposite.|
+| Promise<boolean> | Promise used to asynchronously obtain the return value.
Return value: The value **true** indicates that the screen is on, and the value **false** indicates the opposite.|
**Example**