They saw certain patterns or certain ways of elaborating patterns that the teachers were talking about and, lo and behold, the fifty minutes was over and everybody had had a pretty good time.

他们听着老师以某一种,特别的方式进行讲解，瞧，短短的五十分钟很快就过去了！,而且每个人都听得很开心。

耶鲁公开课 - 文学理论导论课程节选

If you had five slaves and a good piece of land in Alabama in 1820, you might very likely have fifty slaves and a hell of a lot more land a decade later.

820年,如果你在阿拉巴马州,拥有五个奴隶和一块肥沃的土地,十年后你很可能就会拥有五十个奴隶,以及更多的土地

耶鲁公开课 - 美国内战与重建课程节选