!8709 翻译完成：8292 want 接口文档增加示例

Merge pull request !8709 from wusongqing/TR8292

en/application-dev/reference/apis/js-apis-application-Want.md

 # Want
 
-> ![icon-note.gif](public_sys-resources/icon-note.gif) **NOTE**
-> The initial APIs of this module are supported since API version 8. Newly added APIs will be marked with a superscript to indicate their earliest API version.
-
-**Want** is the basic communication component of the system.
+The **Want** module provides the basic communication component of the system.
 
+> **NOTE**
+> 
+> The initial APIs of this module are supported since API version 8. Newly added APIs will be marked with a superscript to indicate their earliest API version.
 
 ## Modules to Import
 
-  
 ```
 import Want from '@ohos.application.Want';
 ```
@@ -20,11 +19,55 @@ import Want from '@ohos.application.Want';
 | Name       | Readable/Writable| Type                | Mandatory| Description                                                        |
 | ----------- | -------- | -------------------- | ---- | ------------------------------------------------------------ |
 | deviceId    | Read only    | string               | No  | ID of the device running the ability.                               |
-| bundleName   | Read only    | string               | No  | Bundle name of the ability. If both **bundleName** and **abilityName** are specified in a **Want** object, the **Want** object can directly match the specified ability.|
-| abilityName  | Read only    | string               | No  | Name of the ability. If both **bundleName** and **abilityName** are specified in a **Want** object, the **Want** object can directly match the specified ability.|
+| bundleName   | Read only    | string               | No  | Bundle name of the ability. If both **bundleName** and **abilityName** are specified in a **Want** object, the **Want** object can match a specific ability.|
+| abilityName  | Read only    | string               | No  | Name of the ability. If both **bundleName** and **abilityName** are specified in a **Want** object, the **Want** object can match a specific ability.|
 | uri          | Read only    | string               | No  | URI information to match. If **uri** is specified in a **Want** object, the **Want** object will match the specified URI information, including **scheme**, **schemeSpecificPart**, **authority**, and **path**.|
-| type         | Read only    | string               | No  | MIME type, for example, **text/plain** or **image/***.  |
-| flags        | Read only    | number               | No  | How the **Want** object will be handled. By default, numbers are passed in. For details, see [flags](js-apis-featureAbility.md#flags).|
+| type         | Read only    | string               | No  | MIME type, for example, **text/plain** or **image/***. |
+| flags        | Read only    | number               | No  | How the **Want** object will be handled. For details, see [flags](js-apis-featureAbility.md#flags).|
 | action      | Read only    | string               | No  | Action option.                          |
-| parameters   | Read only    | {[key: string]: any} | No  | List of parameters in the **Want** object.                                      |
-| entities    | Read only    | Array\<string>       | No  | List of entities.                                   |                              |
+| parameters   | Read only    | {[key: string]: any} | No  | List of parameters in the **Want** object. |
+| entities    | Read only    | Array\<string>       | No  | List of entities.                                   |
+| extensionAbilityType<sup>9+</sup> |  Read only   | bundle.ExtensionAbilityType | No  | Type of the Extension ability.                |
+| extensionAbilityName<sup>9+<sup> | Read only     | string               | No   | Description of the Extension ability name in the **Want** object.                                   |
+
+**Example**
+
+- Basic usage
+
+  ```js
+  var want = {
+        "deviceId": "", // An empty deviceId indicates the local device.
+        "bundleName": "com.extreme.test",
+        "abilityName": "MainAbility",
+        "uri": "pages/second" // uri is optional and can be used to pass the destination URI.
+    };
+    this.context.startAbility(want, (error) => {
+        // Start an ability explicitly. The bundleName, abilityName, and moduleName parameters work together to uniquely identify an ability.
+        console.log("error.code = " + error.code)
+    })
+  ```
+
+- Passing a file descriptor (FD)
+
+  ```js
+  var fd;
+    try {
+        fd = fileio.openSync("/data/storage/el2/base/haps/pic.png");
+    } catch(e) {
+        console.log("openSync fail:" + JSON.stringify(e));
+    }
+    var want = {
+        "deviceId": "", // An empty deviceId indicates the local device.
+        "bundleName": "com.extreme.test",
+        "abilityName": "MainAbility",
+        "parameters": {
+          "keyFd":{"type":"FD", "value":fd}
+        }
+    };
+    this.context.startAbility(want, (error) => {
+        // Start an ability explicitly. The bundleName, abilityName, and moduleName parameters work together to uniquely identify an ability.
+        console.log("error.code = " + error.code)
+    })
+  ```
+
+  
\ No newline at end of file