“比方说，你知道的，这是我曾经教过的最优秀的学生。”哥伦比亚大学拉蒙特校区的社会科学家、多元性官员库亥里·杜特说道。

"Say, you know, this is the best student I've ever had," says Kuheli Dutt, a social scientist and diversity officer at Columbia University's Lamont campus.

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这是我曾经很辛苦才了解到的。

This is something I had to learn the hard way.

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这是我曾经看过的第一部电影。

This is the first film that I have ever seen.

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I don't care if you ever go to church, that is no longer confined to a religious organization.

我不管你们是否曾经去过教堂,这已经不再是限制在某个宗教组织内的事了

耶鲁公开课 - 古希腊历史简介课程节选

And all of a sudden, I moved from being a professor here, which previously had been my greatest opportunity, to leading this very large non-for-profit organization that had both national and international responsibilities.

所以突然间，我从普林斯顿的教授，这曾经是我最大的机遇，变成了这个公益组织的领导者,负有国内和国际的双重责任。

普林斯顿公开课 - 人性课程节选

Here's another one. This one piqued my interest.

这是另一个例子，这曾经打击过我的积极性。

麻省理工公开课 - 固态化学导论课程节选