anchor.diff:  
     :marked
       > [**Testing**](testing.html): Run unit tests on your application parts as they interact with the Angular framework
  -    using the _Angular Testing Platform_.> [**测试**](testing.html)：使用 _Angular 测试平台_，在你的应用部件与 Angular 框架交互时进行单元测试。
  +    using the _Angular Testing Platform_.
  +    
  +    > [**测试**](testing.html)：使用 _Angular 测试平台_，在你的应用部件与 Angular 框架交互时进行单元测试。
  
positive.code:   In TypeScript, you attach metadata by using a **decorator**.
    Here's some metadata for `HeroListComponent`:
  
    在!{_Lang} 中，我们用**装饰器 (!{_decorator}) **来附加元数据。
    下面就是`HeroListComponent`的一些元数据。
  
  +makeExcerpt('src/app/hero-list.component.ts', 'metadata')
  
negative.code:   例如，象下面这样，从`@angular/core`库中导入`Component`装饰器：
    
  +makeExample('src/app/app.component.ts', 'import', '')(format='.')
  
  :marked
    You also import Angular _modules_ from Angular _libraries_ using JavaScript import statements:
    
    还可以使用 JavaScript 的导入语句从 Angular _库_中导入 Angular _模块_。
    
  +makeExample('src/app/mini-app.ts', 'import-browser-module', '')(format='.')
  
  :marked
    In the example of the simple root module above, the application module needs material from within that `BrowserModule`. To access that material, add it to the `@NgModule` metadata `imports` like this.
    
  