By the 1830s,1840s, there were over 100 men in Charleston, South Carolina alone, making their livings full-time as slave traders.

到了十九世纪三四十年代,仅仅在南卡罗来纳的查尔斯顿地区,就有超过一百个,专职从事奴隶贸易的奴隶交易商

耶鲁公开课 - 美国内战与重建课程节选

And it's so good to have you here and to talk to you a little about your work in the world today.

您能来到这个讲堂真是太好了,我们来谈谈,您目前所从事的工作。

普林斯顿公开课 - 人性课程节选

The problem is that if you want to do risk-sharing, you're not, ideally, sharing with someone who's just like you living in Israel, working in a certain agricultural industry-- because there are lots of risks that you've already shared.

如果你真的想要达到风险分摊的效果，理论上说，就不应该只和与你的同伴,比如同住在以色列，一样从事农业的人来分摊-,因为你们承担的许多风险是正相关的。

耶鲁公开课 - 金融市场课程节选

About 10 to 15 years later, another physicist, Ernest Rutherford, actually put this plum pudding model to test, Ernest Rutherford and he did it through studies that he'd been doing on radiation that was emitting something called alpha particles.

因此我们要，在上面再做改进,大概过了10到15年，另外一个物理学家,用实验来检测这个李子布丁模型,他一直从事alpha粒子辐射研究。

麻省理工公开课 - 化学原理课程节选

Banks have been creating something called Structured Investment Vehicles in recent years.

银行近年来设立了一类,从事结构化投资的机构,即SIV

耶鲁公开课 - 金融市场课程节选