留下了很多马赛赤贫者，年轻男子现在集聚在城镇里卖，一种次珍贵的当地石头，或者寻找低收入的工作比如夜班警卫。

It has left many Maasai destitute, with young men now converging in the towns to hustle tanzanite, a semiprecious local stone, or to seek poor-paying jobs as night guards.

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For example, what if you could make a hepatitis vaccine that was good in one shot instead of three shots?

比方说,如果你研制的一种肝炎疫苗,只需接种一次,而不是三次会怎么样

耶鲁公开课 - 生物医学工程探索课程节选

Another sort of task, which is a task that's been done hundreds, perhaps thousands of times, is known as "the false-belief task" and here's the idea.

另一种任务,已经被应用过了成百上千次,叫做"错误信念任务",任务是这样的

耶鲁公开课 - 心理学导论课程节选

These mortgages were given out to people that couldn't afford them and today you have what you call subprime mortgages--subprime paper They issued against this paper stuff called mortgage-backed security. They securitized them and these things are all floating around now.

我们发放这些抵押贷款给那些买不起房子的人,所以现在你们看到了一种你们叫做,次级抵押贷款的金融工具--次贷票据,他们把这种票据叫做,有抵押证券，他们把有抵押证券证券化,这些证券现在在市场上被多次交易，广为流通。

耶鲁公开课 - 金融市场课程节选