点击add按钮以添加一个新扩展。

Click the add button to add a new extension.

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将新扩展元素的值更改为以下值，如图7所示。

Change the values for the new extension element to the following values as shown in figure 7.

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新服务可以返回这个新扩展。

A new service could return the new extension.

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But focusing on things that are sustainable and scalable so that when we launch more schools or go into the next market or whatever we do, we're going to set ourselves up to have the same success that we've had without hurting our self in the current position.

还要关注可持续发展的事物,以及规模容易扩大的事物,当我们向新的学校扩展时,或是进军新市场时，目标就是获得,跟以前一样的成功,并且不破坏现有的水平。

斯坦福公开课 - 扎克伯格谈Facebook创业过程课程节选