"We use what we call good shoes and a good hat, and that would be a solid foundation and a really good roof."

VOA: special.2009.10.05

How good it is to be alive is a matter of adding up all of the-- call it the contents of life.

活着有多美好取决于-,生活内容的总和。

耶鲁公开课 - 死亡课程节选

So, these are poor electron donors but also a good electron acceptors, and we call these non-metals.

所以这些元素都不易失电子,但是它们是很好的电子受体，我们把这些叫做非金属。

麻省理工公开课 - 固态化学导论课程节选

"And that's all to the good," "But there's also a considerable amount , what we call 'green-wash,' when some of the product claims may not be fully accurate.

VOA: standard.2009.03.30

What is useful is point to somebody and say, "You in the green sweater, call the police," and the psychological evidence is if you--if somebody's-- if I am wearing the green sweater and somebody asks me to call the police I will call the police. I'm a good guy.

有用的办法是，指着某个人说，“穿绿色毛衣那个人，快报警”,心理学证明如果你…,如果我穿着绿色毛衣,有人叫我报警,我会报警，我是好人。

耶鲁公开课 - 心理学导论课程节选

Odds are if you're an upperclassman, you've had that experience where it's 12 AM, 1 AM, 2 AM, and you're really starting to stress over the incompletion of some problems that for some course, well frankly what this mechanism allows you to do if you're already 90 percent of the way there, you can call it a night and you can put it down and you could feel good nonetheless about where you got to.

对于上游的同学可能觉得无趣，因为他已经具备了这些经验，这时应该开始关注某些课程中,问题的不完整的部分，如果你已经学会了,里面90%的知识，你可以停工,或者把这门课扔到一边。

哈佛公开课 - 计算机科学课程节选