[zh-cn]: update the translation of SpeechGrammar weight property (#…

…22486)

files/zh-cn/web/api/speechgrammar/weight/index.md

@@ -1,34 +1,30 @@
 ---
-title: SpeechGrammar.weight
+title: SpeechGrammar：weight 属性
 slug: Web/API/SpeechGrammar/weight
+l10n:
+  sourceCommit: 23e1a97d50050a3b3518a4b2f67ccf42e5fd75b7
 ---
 
 {{APIRef("Web Speech API")}}{{SeeCompatTable}}
 
-{{domxref("SpeechGrammar")}} 接口的可选属性 **`weight`** 设置并返回了一个 `SpeechGrammar` 对象的权重。
+{{domxref("SpeechGrammar")}} 接口的 **`weight`** 可选属性用于设置和返回 `SpeechGrammar` 对象的权重。
 
-## 语法
+## 值
 
-```plain
-var myGrammarWeight = speechGrammarInstance.weight;
-```
-
-### 值
-
-浮点数表示了当前文法的权重，范围在 0.0-1.0 之间。
+表示语法权重的浮点数，范围为 0.0 到 1.0。
 
-## 样例
+## 示例
 
 ```js
-var grammar =
+const grammar =
   "#JSGF V1.0; grammar colors; public <color> = aqua | azure | beige | bisque | black | blue | brown | chocolate | coral | crimson | cyan | fuchsia | ghostwhite | gold | goldenrod | gray | green | indigo | ivory | khaki | lavender | lime | linen | magenta | maroon | moccasin | navy | olive | orange | orchid | peru | pink | plum | purple | red | salmon | sienna | silver | snow | tan | teal | thistle | tomato | turquoise | violet | white | yellow ;";
-var recognition = new SpeechRecognition();
-var speechRecognitionList = new SpeechGrammarList();
+const recognition = new SpeechRecognition();
+const speechRecognitionList = new SpeechGrammarList();
 speechRecognitionList.addFromString(grammar, 1);
 recognition.grammars = speechRecognitionList;
 
-console.log(speechRecognitionList[0].src); // 应该返回和上面文法变量一样的内容
-console.log(speechRecognitionList[0].weight); // 应该返回 1 - 与上面第四行所设置的权重一致
+console.log(speechRecognitionList[0].src); // 返回值应与语法变量的内容相同
+console.log(speechRecognitionList[0].weight); // 应返回 1——与 addFromString 中设置的权重相同。
 ```
 
 ## 规范
@@ -39,6 +35,6 @@ console.log(speechRecognitionList[0].weight); // 应该返回 1 - 与上面第
 
 {{Compat}}
 
-## 相关链接
+## 参见
 
 - [Web Speech API](/zh-CN/docs/Web/API/Web_Speech_API)