With any innovation, it's important not only to launch it properly but also to consider how to sustain it over time.

对于任何发明，重要的不仅仅是,正确的使用它，还要考虑,怎样维护它。

麻省理工公开课 - 媒体、教育、市场课程节选

And typically, I'm not going to just search once in a list, I'm going to search multiple times.

还要考虑我要如何去使用它？,我不会对一个列表只做一次搜索。

麻省理工公开课 - 计算机科学及编程导论课程节选

I want to just use it, I shouldn't have to worry about what variables I use inside of it, I have shouldn't have to worry about where that is in the code, I should be able to just abstract it away. And that's what we want to add today, are those two things.

我只是想使用它,我不用考虑我在这段代码中,使用的是什么变量,我完全不用考虑代码的内容,只要抽象就好,我们今天想补充的内容就是这两点。

麻省理工公开课 - 计算机科学及编程导论课程节选