anchor.diff:    You can try this out without installing anything. Open the <live-example>QuickStart example !{_on_Plunkr}</live-example> in another tab
     and follow along.
     
  -  无需安装任何东西，你就可以试试它。在另一个浏览器标签页打开并跟随<live-example>Plunkr上的《快速起步》例子</live-example>。
  +  无需任何安装就可以试试它。在另一个浏览器标签页打开并跟随<live-example> Plunker 上的《快速起步》例子</live-example>。
   
     Every component begins with an `@Component` [!{_decorator}](glossary.html#!{_decorator} '"!{_decorator}" explained')
     <span if-docs="ts">function</span> that
     <span if-docs="ts">takes a _metadata_ object. The metadata object</span> describes how the HTML template and component class work together.
     
  -  每个组件都以`@Component`[装饰器](glossary.html#!{_decorator} '"!{_decorator}" explained')<span if-docs="ts">函数</span>开始，它<span if-docs="ts">接受一个_元数据_对象参数。该元素对象</span>描述了HTML模板和组件类是如何一起工作的。
  +  每个组件都以`@Component`[装饰器](glossary.html#!{_decorator} '"!{_decorator}" explained')<span if-docs="ts">函数</span>开始，它<span if-docs="ts">接受一个_元数据_对象参数。该元素对象</span>描述了 HTML 模板和组件类是如何一起工作的。
     
     The `selector` property tells Angular to display the component inside a custom `<my-app>` tag in the `index.html`.
     
  -  `selector`属性告诉 Angular 在`index.html`中的自定义`<my-app>`标签里显示该组件。
  +  `selector`属性为 Angular 指定了在`index.html`中的自定义`<my-app>`标签里显示该组件。
     
   +makeExample('index.html','my-app','index.html (inside <body>)')(format='.')
   :marked
  
positive.code:   which is an Angular [interpolation binding](guide/displaying-data.html) expression.
    At runtime, Angular replaces `{{name}}` with the value of the component's `name` property. 
    
    `template`属性定义了`<h1>`标题的一条消息。
    该消息以“Hello”开始，以 Angular [插值绑定](guide/displaying-data.html)表达式`{{name}}`结束。
    在运行时，Angular 用组件的`name`属性值替换`{{name}}`。
    
    In the example, change the component class's `name` property from `'Angular'` to `'World'` and see what happens.
  
negative.code: :marked
    Angular applications are made of _components_.
    
    Angular 应用是由*组件*组成的。
    
      A _component_ is the combination of an HTML template and a component class that controls a portion of the screen. Here is an example of a component that displays a simple string:
      
      *组件*由 HTML 模板和组件类组成，组件类控制视图。下面是一个显示简单字符串的组件:
  
  +makeExample('app/app.component.ts')(format='.')
  
  