The other thing that we looked at, which I want to stress again and I'll stress it as many times as I can fit it into lecture, because this is something that confuses students when they're trying to identify, for example, different nodes or areas of no probability.

另外一个我们要考虑的事情，我想再强调一次,而且我以后会在课上强调很多次，因为它很容易让人混淆,这就是当你们在确认，节点或者零概率点时候。

麻省理工公开课 - 化学原理课程节选

And again, I think we looked-- Yup?

而且，我想我们看过-什么问题？

麻省理工公开课 - 计算机科学及编程导论课程节选