You will see the abstractions added to the class diagram. 之后您将会看到提取出来的内容被添加到类图中了。
For example, many beginners read some information about OO, and suddenly the class diagrams to their simple applications look like the Eiffel Tower. 比如说，许多初级者读了一些有关面向对象的信息后，突然间，他们那简单的应用程序的类图看起来就像埃菲尔铁塔一样了。
