But when you start writing programs, especially when we get to web-based stuff where you want -- to check the user's input -- is it valid, is it an email address, -- and all these different scenarios -- it's actually often useful to be able to just enumerate them or rattle them off using this switching construct instead.

但是当你看是写程序时，特别是当我们,使用基于网络的东西，你想要,检查用户的输入-,它是合法的吗？它是不是一个电子邮箱地址？,所有的这些场景-,实际上它常常是有用的，当你用枚举结构列举它们,或者用它来快速地来说出它们。

哈佛公开课 - 计算机科学课程节选

But the law--the SEC requires that they at least present the standard earnings definitions for all these things Now another--let me just mention off balance sheet accounting.

不过,证交会规定他们至少要披露,各项收益标准定义,另一个内容,表外业务会计核算

耶鲁公开课 - 金融市场课程节选

And he's stripped off all of the non-valence electrons.

他忽略了所有非价层电子。

麻省理工公开课 - 固态化学导论课程节选

It is at its worst after retirement ... when you are no longer-- you've exhausted your human capital and you're living off of all the accumulated physical capital.

退休后，到达顶峰,当你不再-,你用尽了你的人力资本,只能以之前积累下来的,有形资本为生。

耶鲁公开课 - 金融市场课程节选