anchor.diff:      <a href="https://webpack.github.io/" target="_blank">webpack</a>.
       SystemJS happens to be a good choice but we want to be clear that it was a choice and not a preference.
       
  -    这个QuickStart使用<a href="https://github.com/systemjs/systemjs" target="_blank">SystemJS</a>来加载应用和库模块。
  +    本QuickStart使用<a href="https://github.com/systemjs/systemjs" target="_blank">SystemJS</a>来加载应用和库模块。
       还有一些其它候选者也能很好地工作，比如备受推崇的<a href="https://webpack.github.io/" target="_blank">webpack</a>。
  -    SystemJS是一个好的选择，但要清楚，它是我们给你的是一个“选择”，而不是“推荐”。
  +    SystemJS是一个好的选择，但要清楚，它只是我们给你的“选择之一”，而不是“推荐”。
       
       All module loaders require configuration and all loader configuration 
       becomes complicated rather quickly as soon as the file structure diversifies and
  
positive.code:   ## 完工！
    Our first application doesn't do much. It's basically "Hello, World" for Angular 2.
    
    我们的第一个应用没做什么，它只是Angular 2的“Hello, World”
  
    We kept it simple in our first pass: we wrote a little Angular component,
    we added some JavaScript libraries to `index.html`, and launched with a
    static file server. That's about all we'd expect to do for a "Hello, World" app.
  
    我们让自己的Angular 2首航保持简单：我们写一个小的Angular组件，添加一些JavaScript库到`index.html`，并且启动一个静态文件服务器。
    这就是我们想通过“Hello, World”应用去表现的一切。
  
    **We have greater ambitions.**
  
negative.code:     * `npm run tsc:w` - run the TypeScript compiler in watch mode;
      the process keeps running, awaiting changes to TypeScript files and re-compiling when it sees them.
      
      * `npm run tsc:w` - 在监听模式运行TypeScript编译器：
      进程持续运行，并等待TypeScript文件发生变化，一旦变化就重新编译它。
  
      * `npm run lite` - run the <a href="https://www.npmjs.com/package/lite-server" target="_blank">lite-server</a>,
      a light-weight, static file server, written and maintained by 
  