Ask not what you can do for your country, etc.

不要问你能为你的国家做些什么这样的问题。

麻省理工公开课 - 固态化学导论课程节选

Some people are going and in this course we would know whether you're hearing duple or triple based on some other information so don't worry about if you're doing .

小部分人是,在本课程中我们会知道,你们是否可以根据其他的信息,辨认出这是三拍子或者二拍子,所以也不要担心,哪怕你这样做了

耶鲁公开课 - 聆听音乐课程节选