anchor.diff:  :marked
     ***Compiling the application***
   
  -  ### 编译该应用
  +  *** 编译该应用 ***
   
     Initiate AOT compilation from the command line using the previously installed `ngc` compiler by executing:
   
  
positive.code:   Rollup expects application source code to use `ES2015` modules. 
    Not all external dependencies are published as `ES2015` modules.
    In fact, most are not. Many of them are published as _CommonJS_ modules.
    Rollup期望应用的源码使用`ES2015`模块。
    但并不是所有外部依赖都发布成了`ES2015`模块。
    事实上，大多数都不是。它们大多数都发布成了*CommonJS*模块。
    The _RxJs_ Observable library is an essential Angular dependency published as an ES5 JavaScript _CommonJS_ module.
  
    可观察对象库*RxJS*是Angular所依赖的基础之一，它就是发布成了ES5 JavaScript的*CommonJS*模块。
  
negative.code:   The compiler _inlines_ external HTML templates and CSS style sheets within the application JavaScript,
    eliminating separate ajax requests for those source files.
  
    编译器把外部HTML模板和CSS样式表内联到了该应用的JavaScript中。
    消除了用来下载那些源文件的Ajax请求。
  
    *Smaller Angular framework download size*
  