戴维·艾森巴赫在哥伦比亚大学教授一门关于美国总统的热门课程，他更偏爱课上考试。

David Eisenbach, who teaches a popular class on U.S. presidents at Columbia, prefers the in-class variety.

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戴维·艾森巴赫（David Eisenbach）在哥伦比亚大学教授一门关于美国总统的热门课程，他更注重课堂的多样性。

David Eisenbach, who teaches a popular class on U.S.?presidents?at?Columbia,?prefers?the?in-class?variety.

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商务英语在大学已成为一门热门课程。

It has become a hot course in colleges.

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They wanted to understand this phenomenon that "here you have a class, that's larger than Introduction to Economics".

他们对这一奇特现象非常好奇，“竟然有比经济学导论更热门的课程。

哈佛公开课 - 幸福课课程节选