Add translate in forms.html.

There are some words not be translated.

Author: tolerious

src/v2/guide/forms.md

@@ -362,12 +362,11 @@ vm.selected.number // -> 123
 <input v-model.trim="msg">
 ```
 
-## `v-model` with Components
+## `v-model`与组件
 
-> If you're not yet familiar with Vue's components, just skip this for now.
-
-HTML's built-in input types won't always meet your needs. Fortunately, Vue components allow you to build reusable inputs with completely customized behavior. These inputs even work with `v-model`! To learn more, read about [custom inputs](components.html#Form-Input-Components-using-Custom-Events) in the Components guide.
+> 如果你对组件还不熟悉，跳过这里即可。
 
+HTML的内置input类型可能不会总是能满足你的需求。幸运的是，Vue的组件系统允许你创建一个具有自定义行为的并且可重用的inputs。这些inputs甚至可以与`v-model`一起使用!想了解更多，阅读组件文档中的[自定义inputs](components.html#Form-Input-Components-using-Custom-Events)。
 
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