diff --git a/en/application-dev/reference/apis/js-apis-ability-context.md b/en/application-dev/reference/apis/js-apis-ability-context.md
index a06bca19748db57c57a53367fb16af9b086a4b2d..0fafc6f7b97312e45f594d711ea4151135308cc9 100644
--- a/en/application-dev/reference/apis/js-apis-ability-context.md
+++ b/en/application-dev/reference/apis/js-apis-ability-context.md
@@ -1,42 +1,33 @@
 # AbilityContext
 
-- [属性](#属性)
-- [startAbility](#startAbility)
-- [startAbility](#startAbility)
-- [startAbilityForResult](#startAbilityForResult)
-- [startAbilityForResult](#startAbilityForResult)
-- [terminateSelf](#terminateSelf)
-- [terminateSelf](#terminateSelf)
-- [terminateSelfWithResult](#terminateSelfWithResult)
-- [terminateSelfWithResult](#terminateSelfWithResult)
-> ![icon-note.gif](public_sys-resources/icon-note.gif) **说明：**
-> 本模块首批接口从API 8开始支持。后续版本的新增接口，采用上角标单独标记接口的起始版本。
+> ![icon-note.gif](public_sys-resources/icon-note.gif) **Note:**
+> The initial APIs of this module are supported since API 8. Newly added APIs will be marked with a superscript to indicate their earliest API version.
 
 
-Ability的上下文环境，继承自Context。
+Implements ability context. This module is inherited from **Context**.
 
 
-## 属性
+## Attributes
 
-| 名称 | 参数类型 | 可读 | 可写 | 说明 | 
+| Name| Type| Readable| Writable| Description| 
 | -------- | -------- | -------- | -------- | -------- |
-| abilityInfo | AbilityInfo | 是 | 否 | Abilityinfo相关信息 | 
-| currentHapModuleInfo | HapModuleInfo | 是 | 否 | 当前hap包的信息 | 
+| abilityInfo | AbilityInfo | Yes| No| Ability information.| 
+| currentHapModuleInfo | HapModuleInfo | Yes| No| Information about the current HAP.| 
 
 
 ## startAbility
 
 startAbility(want: Want, callback: AsyncCallback<void>): void
 
-启动Ability。
+Starts an ability. This method uses a callback to return the result.
 
-- 参数：
-  | 参数名 | 类型 | 必填 | 说明 | 
+- Parameters
+  | Name| Type| Mandatory| Description| 
   | -------- | -------- | -------- | -------- |
-  | want | [Want](js-apis-featureAbility.md#Want类型说明) | 是 | 启动Ability的want信息。 | 
-  | callback | AsyncCallback<void> | 是 | callback形式返回启动结果 | 
+  | want | [Want](js-apis-featureAbility.md#Want)| Yes| Information about the **Want** used for starting an ability.| 
+  | callback | AsyncCallback<void> | Yes| Callback used to return the result.| 
 
-- 示例：
+- Example
   ```
   var want = {
   	"deviceId": "",
@@ -53,19 +44,19 @@ startAbility(want: Want, callback: AsyncCallback<void>): void
 
 startAbility(want: Want): Promise<void>;
 
-启动Ability。通过Promise返回结果。
+Starts an ability. This method uses a promise to return the result.
 
-- 参数：
-  | 参数名 | 类型 | 必填 | 说明 | 
+- Parameters
+  | Name| Type| Mandatory| Description| 
   | -------- | -------- | -------- | -------- |
-  | want | [Want](js-apis-featureAbility.md#Want类型说明) | 是 | 启动Ability的want信息。 | 
+  | want | [Want](js-apis-featureAbility.md#Want)| Yes| Information about the **Want** used for starting an ability.| 
 
-- 返回值：
-  | 类型 | 说明 | 
+- Return value
+  | Type| Description| 
   | -------- | -------- |
-  | Promise<void> | Promise形式返回启动结果。 | 
+  | Promise<void> | Promise used to return the result.| 
 
-- 示例：
+- Example
   ```
   var want = {
   	"deviceId": "",
@@ -85,16 +76,16 @@ startAbility(want: Want): Promise<void>;
 
 startAbilityForResult(want: Want, callback: AsyncCallback<AbilityResult>): void;
 
-启动Ability并在结束的时候返回执行结果。
+Starts an ability. This method uses a callback to return the execution result when the ability is terminated.
 
-- 参数：
-  | 参数名 | 类型 | 必填 | 说明 | 
+- Parameters
+  | Name| Type| Mandatory| Description|
   | -------- | -------- | -------- | -------- |
-  | want |[Want](js-apis-featureAbility.md#Want类型说明) | 是 | 启动Ability的want信息。 | 
-  | callback | Callback<[AbilityResult](js-apis-featureAbility.md#AbilityResult类型说明)> | 是 | 执行结果回调函数。 | 
+  | want |[Want](js-apis-featureAbility.md#Want)| Yes| Information about the **Want** used for starting an ability.|
+  | callback | Callback<[AbilityResult](js-apis-featureAbility.md#abilityresult)> | Yes| Callback used to return the result.|
 
 
-- 示例：
+- Example
   ```
   this.context.startAbilityForResult(
       {bundleName: "com.extreme.myapplication", abilityName: "MainAbilityDemo2"},
@@ -110,19 +101,19 @@ startAbilityForResult(want: Want, callback: AsyncCallback<AbilityResult>):
 
 startAbilityForResult(want: Want): Promise<AbilityResult>;
 
-启动Ability并在结束的时候返回执行结果。
+Starts an ability. This method uses a promise to return the execution result when the ability is terminated.
 
-- 参数：
-  | 参数名 | 类型 | 必填 | 说明 | 
+- Parameters
+  | Name| Type| Mandatory| Description| 
   | -------- | -------- | -------- | -------- |
-  | want | [Want](js-apis-featureAbility.md#Want类型说明) | 是 | 启动Ability的want信息。 | 
+  | want | [Want](js-apis-featureAbility.md#Want)| Yes| Information about the **Want** used for starting an ability.| 
 
-- 返回值
-  | 类型 | 说明 | 
+- Return value
+  | Type| Description|
   | -------- | -------- |
-  | Promise<[AbilityResult](js-apis-featureAbility.md#AbilityResult类型说明)> | Promise形式返回执行结果。 | 
+  | Promise<[AbilityResult](js-apis-featureAbility.md#abilityresult)> | Promise used to return the result.|
 
-- 示例：
+- Example
   ```
   this.context.startAbilityForResult({bundleName: "com.extreme.myapplication", abilityName: "MainAbilityDemo2"}).then((result) => {
       console.log("startAbilityForResult Promise.resolve is called, result.resultCode = " + result.resultCode)
@@ -136,14 +127,14 @@ startAbilityForResult(want: Want): Promise<AbilityResult>;
 
 terminateSelf(callback: AsyncCallback<void>): void;
 
-停止Ability自身。
+Terminates this ability. This method uses a callback to return the result.
 
-- 参数：
-  | 参数名 | 类型 | 必填 | 说明 | 
+- Parameters
+  | Name| Type| Mandatory| Description| 
   | -------- | -------- | -------- | -------- |
-  | callback | AsyncCallback<void> | 否 | 回调函数，返回接口调用是否成功的结果。 | 
+  | callback | AsyncCallback<void> | No| Callback used to return the result indicating whether the method is successfully called.| 
 
-- 示例：
+- Example
   ```
   this.context.terminateSelf((err) => {
       console.log('terminateSelf result:' + JSON.stringfy(err);
@@ -155,14 +146,14 @@ terminateSelf(callback: AsyncCallback<void>): void;
 
 terminateSelf(): Promise<void>;
 
-停止Ability自身。通过Promise返回结果。
+Terminates this ability. This method uses a promise to return the result.
 
-- 返回值：
-  | 类型 | 说明 | 
+- Return value
+  | Type| Description| 
   | -------- | -------- |
-  | Promise<void> | 返回一个Promise，包含接口的结果。 | 
+  | Promise<void> | Promise used to return the result indicating whether the method is successfully called.| 
 
-- 示例：
+- Example
   ```
   this.context.terminateSelf(want).then((data) => {
       console.log('success:' + JSON.stringfy(data));
@@ -176,15 +167,15 @@ terminateSelf(): Promise<void>;
 
 terminateSelfWithResult(parameter: AbilityResult, callback: AsyncCallback<void>): void;
 
-停止Ability，并返回给调用startAbilityForResult 接口调用方的相关信息。
+Terminates this ability. This method uses a callback to return the information to the caller of **startAbilityForResult**.
 
-- 参数
-  | 参数名 | 类型 | 必填 | 说明 | 
+- Parameters
+  | Name| Type| Mandatory| Description|
   | -------- | -------- | -------- | -------- |
-  | parameter |  [AbilityResult](js-apis-featureAbility.md#AbilityResult类型说明) | 是 | 返回给调用startAbilityForResult 接口调用方的相关信息。 | 
-  | callback | Callback<void> | 否 | callback形式返回停止结果 | 
+  | parameter | [AbilityResult](js-apis-featureAbility.md#abilityresult) | Yes| Information returned to the caller.|
+  | callback | Callback<void> | No| Callback used to return the information.|
 
-- 示例：
+- Example
   ```
   this.context.terminateSelfWithResult(
      {
@@ -201,19 +192,19 @@ terminateSelfWithResult(parameter: AbilityResult, callback: AsyncCallback<voi
 
 terminateSelfWithResult(parameter: AbilityResult): Promise<void>;
 
-停止Ability，并返回给调用startAbilityForResult 接口相关信息。
+Terminates this ability. This method uses a promise to return information to the caller of **startAbilityForResult**.
 
-- 参数：
-  | 参数名 | 类型 | 必填 | 说明 | 
+- Parameters
+  | Name| Type| Mandatory| Description|
   | -------- | -------- | -------- | -------- |
-  | parameter |  [AbilityResult](js-apis-featureAbility.md#AbilityResult类型说明) | 是 | 返回给startAbilityForResult 调用方的信息。 | 
+  | parameter | [AbilityResult](js-apis-featureAbility.md#abilityresult) | Yes| Information returned to the caller.|
 
-- 返回值：
-  | 类型 | 说明 | 
+- Return value
+  | Type| Description| 
   | -------- | -------- |
-  | Promise<void> | promise形式返回停止结果 | 
+  | Promise<void> | Promise used to return the result.| 
 
-- 示例：
+- Example
   ```
   this.context.terminateSelfWithResult(
   {
diff --git a/en/application-dev/reference/apis/js-apis-extension-context.md b/en/application-dev/reference/apis/js-apis-extension-context.md
index bf211462e4c27807e47e0c997eac1971e382a5a9..ceb82e2732a54a107ca35e647c67d6ec16c6bf9d 100644
--- a/en/application-dev/reference/apis/js-apis-extension-context.md
+++ b/en/application-dev/reference/apis/js-apis-extension-context.md
@@ -1,15 +1,14 @@
 # ExtensionContext
 
-- [属性](#属性)
-> ![icon-note.gif](public_sys-resources/icon-note.gif) **说明：**
-> 本模块首批接口从API 8开始支持。后续版本的新增接口，采用上角标单独标记接口的起始版本。
+> ![icon-note.gif](public_sys-resources/icon-note.gif) **Note:**
+> The initial APIs of this module are supported since API 8. Newly added APIs will be marked with a superscript to indicate their earliest API version.
 
 
-Extension的上下文环境，继承自Context。
+Implements extension context. This module is inherited from **Context**.
 
 
-## 属性
+## Attributes
 
-| 名称 | 参数类型 | 可读 | 可写 | 说明 | 
+| Name| Type| Readable| Writable| Description| 
 | -------- | -------- | -------- | -------- | -------- |
-| currentHapModuleInfo | HapModuleInfo | 是 | 否 | 当前Hap包的信息。 | 
+| currentHapModuleInfo | HapModuleInfo | Yes| No| Information about the current HAP.| 
diff --git a/en/application-dev/reference/apis/js-apis-service-extension-context.md b/en/application-dev/reference/apis/js-apis-service-extension-context.md
index ba9210e927487fe56c9ab94c011e681cf78b394b..fa46ef6df13d0e7bd7b4c8dd788fbe4184417488 100644
--- a/en/application-dev/reference/apis/js-apis-service-extension-context.md
+++ b/en/application-dev/reference/apis/js-apis-service-extension-context.md
@@ -1,18 +1,10 @@
 # ServiceExtensionContext
 
-- [startAbility](#startAbility)
-- [startAbility](#startAbility)
-- [terminateSelf](#terminateSelf)
-- [terminateSelf](#terminateSelf)
-- [connectAbility](#connectAbility)
-- [disconnectAbility](#disconnectAbility)
-- [disconnectAbility](#disconnectAbility)
-- [ConnectOptions](#ConnectOptions)
-> ![icon-note.gif](public_sys-resources/icon-note.gif) **说明：**
-> 本模块首批接口从API 8开始支持。后续版本的新增接口，采用上角标单独标记接口的起始版本。
+> ![icon-note.gif](public_sys-resources/icon-note.gif) **Note:**
+> The initial APIs of this module are supported since API 8. Newly added APIs will be marked with a superscript to indicate their earliest API version.
 
 
-ServiceExtension的上下文环境，提供ServiceExtension具有的能力和接口，继承自ExtensionContext。
+Implements the context that provides the capabilities and APIs of **ServiceExtension**. This class is inherited from **ExtensionContext**.
 
 
 ## startAbility
@@ -21,16 +13,16 @@ ServiceExtension的上下文环境，提供ServiceExtension具有的能力和接
 startAbility(want: Want, callback: AsyncCallback<void>): void;
 
 
-启动Ability。
+Starts an ability. This method uses a callback to return the result.
 
 
-- 参数：
-  | 参数名 | 类型 | 必填 | 说明 | 
+- Parameters
+  | Name| Type| Mandatory| Description| 
   | -------- | -------- | -------- | -------- |
-  | want | [Want](js-apis-featureAbility.md#Want类型说明)  | 是 | Want类型参数，传入需要启动的ability的信息，如ability名称，包名等。 | 
-  | callback | AsyncCallback<void> | 否 | 回调函数，返回接口调用是否成功的结果。 | 
+  | want | [Want](js-apis-featureAbility.md#Want)| Yes| Information about the ability to start, such as the ability name and bundle name.| 
+  | callback | AsyncCallback<void> | No| Callback used to return the result indicating whether the method is successfully called.| 
 
-- 示例：
+- Example
   ```
   let want = {
       "bundleName": "com.example.myapp",
@@ -46,19 +38,19 @@ startAbility(want: Want, callback: AsyncCallback<void>): void;
 
 startAbility(want: Want): Promise<void>;
 
-启动Ability。通过Promise返回结果。
+Starts an ability. This method uses a promise to return the result.
 
-- 参数：
-  | 参数名 | 类型 | 必填 | 说明 | 
+- Parameters
+  | Name| Type| Mandatory| Description| 
   | -------- | -------- | -------- | -------- |
-  | want | [Want](js-apis-featureAbility.md#Want类型说明)  | 是 | Want类型参数，传入需要启动的ability的信息，如ability名称，包名等。 | 
+  | want | [Want](js-apis-featureAbility.md#Want)| Yes| Information about the ability to start, such as the ability name and bundle name.| 
 
-- 返回值：
-  | 类型 | 说明 | 
+- Return value
+  | Type| Description| 
   | -------- | -------- |
-  | Promise<void> | 返回一个Promise，包含接口的结果。 | 
+  | Promise<void> | Promise used to return the result indicating whether the method is successfully called.| 
 
-- 示例：
+- Example
   ```
   let want = {
       "bundleName": "com.example.myapp",
@@ -76,14 +68,14 @@ startAbility(want: Want): Promise<void>;
 
 terminateSelf(callback: AsyncCallback<void>): void;
 
-停止Ability自身。
+Terminates this ability. This method uses a callback to return the result.
 
-- 参数：
-  | 参数名 | 类型 | 必填 | 说明 | 
+- Parameters
+  | Name| Type| Mandatory| Description| 
   | -------- | -------- | -------- | -------- |
-  | callback | AsyncCallback<void> | 否 | 回调函数，返回接口调用是否成功的结果。 | 
+  | callback | AsyncCallback<void> | No| Callback used to return the result indicating whether the method is successfully called.| 
 
-- 示例：
+- Example
   ```
   this.context.terminateSelf((err) => {
       console.log('terminateSelf result:' + JSON.stringfy(err);
@@ -95,14 +87,14 @@ terminateSelf(callback: AsyncCallback<void>): void;
 
 terminateSelf(): Promise<void>;
 
-停止自身。通过Promise返回结果。
+Terminates this ability. This method uses a promise to return the result.
 
-- 返回值：
-  | 类型 | 说明 | 
+- Return value
+  | Type| Description| 
   | -------- | -------- |
-  | Promise<void> | 返回一个Promise，包含接口的结果。 | 
+  | Promise<void> | Promise used to return the result indicating whether the method is successfully called.| 
 
-- 示例：
+- Example
   ```
   this.context.terminateSelf(want).then((data) => {
       console.log('success:' + JSON.stringfy(data));
@@ -116,20 +108,20 @@ terminateSelf(): Promise<void>;
 
 connectAbility(want: Want, options: ConnectOptions): number;
 
-将一个Ability与服务类型的Ability绑定。
+Connects this ability to a Service ability.
 
-- 参数：
-  | 参数名 | 类型 | 必填 | 说明 | 
+- Parameters
+  | Name| Type| Mandatory| Description| 
   | -------- | -------- | -------- | -------- |
-  | want | [Want](js-apis-featureAbility.md#Want类型说明)  | 是 | Want类型参数，传入需要启动的ability的信息，如ability名称，包名等。 | 
-  | options | [ConnectOptions](#connectoptions) | 是 | ConnectOptions类型的回调函数，返回服务连接成功、断开或连接失败后的信息。 | 
+  | want | [Want](js-apis-featureAbility.md#Want)| Yes| Information about the ability to connect to, such as the ability name and bundle name.| 
+  | options | [ConnectOptions](#connectoptions) | Yes| Callback used to return the information indicating that the connection is successful, interrupted, or failed.| 
 
-- 返回值
-  | 类型 | 说明 | 
+- Return value
+  | Type| Description| 
   | -------- | -------- |
-  | number | 返回一个number，后续根据这个number去断开连接。 | 
+  | number | A number, based on which the connection will be interrupted.| 
 
-- 示例：
+- Example
   ```
   let want = {
       "bundleName": "com.example.myapp",
@@ -148,17 +140,17 @@ connectAbility(want: Want, options: ConnectOptions): number;
 
 disconnectAbility(connection: number, callback:AsyncCallback<void>): void;
 
-将一个Ability与绑定的服务类型的Ability解绑。
+Disconnects this ability from the Service ability. This method uses a callback to return the result.
 
-- 参数：
-  | 参数名 | 类型 | 必填 | 说明 | 
+- Parameters
+  | Name| Type| Mandatory| Description| 
   | -------- | -------- | -------- | -------- |
-  | connection | number | 是 | 在connectAbility中返回的number。 | 
-  | callback | AsyncCallback<void> | 否 | 回调函数，返回接口调用是否成功的结果。 | 
+  | connection | number | Yes| Number returned after **connectAbility** is called.| 
+  | callback | AsyncCallback<void> | No| Callback used to return the result indicating whether the method is successfully called.| 
 
-- 示例：
+- Example
   ```
-  this.context.disconnectAbility(connection, (err) => { // connection为connectAbility中的返回值
+  this.context.disconnectAbility(connection, (err) => { // connection is the return value of connectAbility.
       console.log('terminateSelf result:' + JSON.stringfy(err);
   }
   ```
@@ -168,21 +160,21 @@ disconnectAbility(connection: number, callback:AsyncCallback<void>): void;
 
 disconnectAbility(connection: number): Promise<void>;
 
-将一个Ability与绑定的服务类型的Ability解绑。通过Promise返回结果。
+Disconnects this ability from the Service ability. This method uses a promise to return the result.
 
-- 参数：
-  | 参数名 | 类型 | 必填 | 说明 | 
+- Parameters
+  | Name| Type| Mandatory| Description| 
   | -------- | -------- | -------- | -------- |
-  | connection | number | 是 | 在connectAbility中返回的number。 | 
+  | connection | number | Yes| Number returned after **connectAbility** is called.| 
 
-- 返回值：
-  | 类型 | 说明 | 
+- Return value
+  | Type| Description| 
   | -------- | -------- |
-  | Promise<void> | 返回一个Promise，包含接口的结果。 | 
+  | Promise<void> | Promise used to return the result indicating whether the method is successfully called.| 
 
-- 示例：
+- Example
   ```
-  this.context.disconnectAbility(connection).then((data) => { // connection为connectAbility中的返回值
+  this.context.disconnectAbility(connection).then((data) => { // connection is the return value of connectAbility.
       console.log('success:' + JSON.stringfy(data));
   )).catch((error) => {
       console.log('failed:' + JSON.stringfy(error));
@@ -192,10 +184,10 @@ disconnectAbility(connection: number): Promise<void>;
 
 ## ConnectOptions
 
-ConnectOptions数据结构。
+Defines the **ConnectOptions** data structure.
 
-| 名称 | 说明 | 
+| Name| Description| 
 | -------- | -------- |
-| onConnect(elementName:ElementName, remote:IRemoteObject) | Ability成功连接一个服务类型Ability的回调接口。 | 
-| onDisconnect(elementName:ElementName) | 对端服务发生异常或者被杀死回调该接口。 | 
-| onFailed(code: number) | 连接失败时回调该接口。 | 
+| onConnect(elementName:ElementName, remote:IRemoteObject) | Called when this ability is connected to a Service ability.| 
+| onDisconnect(elementName:ElementName) | Called when the peer service is abnormal or killed.| 
+| onFailed(code: number) | Called when the connection fails.| 
diff --git a/en/application-dev/reference/apis/js-apis-service-extension.md b/en/application-dev/reference/apis/js-apis-service-extension.md
index cde5ba29020f02c88b123fd3c5fa4541882e649a..22f46948c07041a90488fef30df310ddb2f1294f 100644
--- a/en/application-dev/reference/apis/js-apis-service-extension.md
+++ b/en/application-dev/reference/apis/js-apis-service-extension.md
@@ -1,51 +1,43 @@
 # ServiceExtension
 
-- [导入模块](#导入模块)
-- [权限](#权限)
-- [属性](#属性)
-- [onCreate](#onCreate)
-- [onDestroy](#onDestroy)
-- [onRequest](#onRequest)
-- [onConnect](#onConnect)
-- [onDisconnect](#onDisconnect)
-> ![icon-note.gif](public_sys-resources/icon-note.gif) **说明：**
-> 本模块首批接口从API 8开始支持。后续版本的新增接口，采用上角标单独标记接口的起始版本。
+> ![icon-note.gif](public_sys-resources/icon-note.gif) **Note:**
+> The initial APIs of this module are supported since API 8. Newly added APIs will be marked with a superscript to indicate their earliest API version.
 
 
-提供ServiceExtension服务扩展相关接口。
+Provides APIs related to **ServiceExtension**.
 
 
-## 导入模块
+## Modules to Import
 
 ```
 import ServiceExtension from '@ohos.application.ServiceExtension';
 ```
 
 
-## 权限
+## Required Permissions
 
-无
+None
 
 
-## 属性
+## Attributes
 
-| 名称 | 参数类型 | 可读 | 可写 | 说明 | 
+| Name| Type| Readable| Writable| Description| 
 | -------- | -------- | -------- | -------- | -------- |
-| context | [ServiceExtensionContext](js-apis-service-extension-context.md)  | 是 | 否 | ServiceExtension的上下文环境，继承自ExtensionContext。 | 
+| context | [ServiceExtensionContext](js-apis-service-extension-context.md)  | Yes| No| Service extension context, which is inherited from **ExtensionContext**.| 
 
 
 ## onCreate
 
 onCreate(want: Want): void;
 
-Extension生命周期回调，在创建时回调，执行初始化业务逻辑操作。
+Called when an extension is created to initialize the service logic.
 
-- 参数：
-  | 参数名 | 类型 | 必填 | 说明 | 
+- Parameters
+  | Name| Type| Mandatory| Description| 
   | -------- | -------- | -------- | -------- |
-  | want |  [Want](js-apis-featureAbility.md#Want类型说明) | 是 | 当前Extension相关的Want类型信息，包括ability名称、bundle名称等。 | 
+  | want |  [Want](js-apis-featureAbility.md#Want)| Yes| Information related to this extension, including the ability name and bundle name.| 
 
-- 示例：
+- Example
   ```
   onCreate(want) {
       console.log('onCreate, want:' + want.abilityName);
@@ -57,9 +49,9 @@ Extension生命周期回调，在创建时回调，执行初始化业务逻辑
 
 onDestroy(): void;
 
-Extension生命周期回调，在销毁时回调，执行资源清理等操作。
+Called when this extension is destroyed to clear resources.
 
-- 示例：
+- Example
   ```
   onDestroy() {
       console.log('onDestroy');
@@ -72,15 +64,15 @@ Extension生命周期回调，在销毁时回调，执行资源清理等操作
 
 onRequest(want: Want, startId: number): void;
 
-Extension生命周期回调，如果是startAbility拉起的服务，会在onCreate之后回调。每次拉起服务都会回调，startId会递增。
+Called after **onCreate** is invoked when an ability is started by calling **startAbility**. The value of **startId** is incremented for each ability that is started.
 
-- 参数：
-  | 参数名 | 类型 | 必填 | 说明 | 
+- Parameters
+  | Name| Type| Mandatory| Description| 
   | -------- | -------- | -------- | -------- |
-  | want |  [Want](js-apis-featureAbility.md#Want类型说明) | 是 | 当前Extension相关的Want类型信息，包括ability名称、bundle名称等。 | 
-  | startId | number | 是 | 返回拉起次数。首次拉起初始值返回1，多次之后自动递增。 | 
+  | want |  [Want](js-apis-featureAbility.md#Want)| Yes| Information related to this extension, including the ability name and bundle name.| 
+  | startId | number | Yes| Number of ability start times. The initial value is **1**, and the value is automatically incremented for each ability started.| 
 
-- 示例：
+- Example
   ```
   onRequest(want: Want, startId: number) {
       console.log('onRequest, want:' + want.abilityName);
@@ -92,19 +84,19 @@ Extension生命周期回调，如果是startAbility拉起的服务，会在onCre
 
 onConnect(want: Want): rpc.RemoteObject;
 
-Extension生命周期回调，如果是connectAbility拉起的服务，会在onCreate之后回调。返回一个RemoteObject对象，用于和客户端进行通信。
+Called after **onCreate** is invoked when an ability is started by calling **connectAbility**. A **RemoteObject** object is returned for communication with the client.
 
-- 参数：
-  | 参数名 | 类型 | 必填 | 说明 | 
+- Parameters
+  | Name| Type| Mandatory| Description| 
   | -------- | -------- | -------- | -------- |
-  | want |  [Want](js-apis-featureAbility.md#Want类型说明)| 是 | 当前Extension相关的Want类型信息，包括ability名称、bundle名称等。 | 
+  | want |  [Want](js-apis-featureAbility.md#Want)| Yes| Information related to this extension, including the ability name and bundle name.| 
 
-- 返回值：
-  | 类型 | 说明 | 
+- Return value
+  | Type| Description| 
   | -------- | -------- |
-  | rpc.RemoteObject | 一个RemoteObject对象，用于和客户端进行通信。 | 
+  | rpc.RemoteObject | A **RemoteObject** object used for communication with the client.| 
 
-- 示例：
+- Example
   ```
   import rpc from '@ohos.rpc'
   class StubTest extends rpc.RemoteObject{
@@ -126,14 +118,14 @@ Extension生命周期回调，如果是connectAbility拉起的服务，会在onC
 
 onDisconnect(want: Want): void;
 
-Extension的生命周期，断开服务连接时回调。
+Called when the ability is disconnected.
 
-- 参数：
-  | 参数名 | 类型 | 必填 | 说明 | 
+- Parameters
+  | Name| Type| Mandatory| Description| 
   | -------- | -------- | -------- | -------- |
-  | want |[Want](js-apis-featureAbility.md#Want类型说明)| 是 | 当前Extension相关的Want类型信息，包括ability名称、bundle名称等。 | 
+  | want |[Want](js-apis-featureAbility.md#Want)| Yes| Information related to this extension, including the ability name and bundle name.| 
 
-- 示例：
+- Example
   ```
   onDisconnect(want) {
       console.log('onDisconnect, want:' + want.abilityName);