When this movie came out twenty years ago they needed a character to play a gay man.

0年前这部电影上映时,他们需要一个人扮演一个同性恋男人。

耶鲁公开课 - 心理学导论课程节选

Each group needed a justification for saying how interesting the task was, but they each had a justification.

每一组都需要一个理由来说明,这个任务有多有趣，但他们各自有自己的理由。

耶鲁公开课 - 心理学导论课程节选

They have to pay--the premium has to cover the costs, so it was tough to get someone to buy life insurance even though they really needed it--it was such a good idea for them.

因为保费必须要超过保险公司的成本,因此,尽管寿险很好,人们也需要它,但是真正要说服人们购买,却是很困难的

耶鲁公开课 - 金融市场课程节选

Even if that beaker had all the nutrients that skin cells needed they wouldn't survive very well in solution, they tend to need to be stuck to a surface in order to survive.

即使供给它们所有所需的养分,它们也不能在溶液中正常存活,皮肤细胞倾向于贴壁生长

耶鲁公开课 - 生物医学工程探索课程节选

These conditions permitted a development of institutions and habits needed for freedom, even as they also made Europe vulnerable to conquests and to extinction, and Europe was almost extinguished practically before there was a Europe; very early in its history.

这些恰恰是自由的形成和发展,需要的的制度和特征,尽管这也使欧洲,在外敌入侵时变的不堪一击,实际上,在它早期的历史中,欧洲在尚未形成前就差点消失

耶鲁公开课 - 古希腊历史简介课程节选

They might very well be storing the addresses of memory elsewhere, but we just needed them as sort of a cheat sheet, a little address card to know where the original values x and y were.

它们存储在内存的其他地方是可以的,但是我们需要一个备忘单,一个地址卡，来知道,原始的值x和y是什么。

哈佛公开课 - 计算机科学课程节选