So one of the reasons there is a huge increase in life span is because people aren't dying of things that they would have in prior years.

寿命范围显著增长的一个原因是,人们不再死于,以前那些致死的东西

耶鲁公开课 - 生物医学工程探索课程节选

I had been living in Japan for two years prior to meeting her. I'd been over there,

在认识她之前，我在日本住了两年。那段时间我一直呆在日本，

从朋友到恋人 - SpeakingMax英语口语达人

Course assistants as we use the jargon are alumni of CS50 who return to the course for a couple of hours a week having taken it in prior years, to help you, the newest batch of students, one on one with office hours, with problem sets; and similarly do the CS function as they might in many courses.

课程助理用我们的行话说就是CS50校友0,他们在前几年一直都是一周回来几个小时,来帮助你们这些新生，在上机的时候以一对一的方式，帮助你们完成这些问题集,在很多其他课程中他们也是这么做的。

哈佛公开课 - 计算机科学课程节选

It took these institutions until 1993--a full six years-- to get their bond allocation back down to where it had been prior to the crash in October 1987.

这些机构直至1993年,整整六年时间,才恢复到1987年10月崩盘之前的,债券投资配置

耶鲁公开课 - 金融市场课程节选