"My brother and I were talking about how - normally you do not just walk up to a temple or a synagogue and say, 'hey,can I come in and take a look?' So this is a great opportunity and exposes me to a lot of things that I would not otherwise have been exposed to,"

VOA: standard.2009.10.19

But if you say, well, I don't know how to do this, I am not going to bother, don't grade the paper.

但是如果你说，好吧，我不知道怎么做这个，我想麻烦，别给试卷评分。

麻省理工公开课 - 固态化学导论课程节选