In American history our reform crusades have usually had to do with one of several objects or purposes or problems.

在美国历史上我们为理想而进行的改革,通常与如下几个目的,或意图,或者问题之一有关联

耶鲁公开课 - 美国内战与重建课程节选

Agriculture subsidies in the European Union affect the politics of subsidies here and that affects the costs of food and what we pay for them at the market.

欧盟对农业的补贴政策影响了,美国的政策,进而影响了食品的价格,而在市场上我们会为此付出代价

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

He is often said to be the second most powerful man in the country after the president who is the most powerful man not only in the US, but also in the world.

他经常被人们称为,位列总统之后,国家里面最有权力的人,而总统不仅是美国,而且在世界上，都是权力最大的人。

普林斯顿公开课 - 国际座谈会课程节选

I'd like to introduce a representative from "Teach for America" which is an organization that has done and is doing a lot of good, promoting goodness in the world and I'd like to-- in 1504, we've been supporting them for the last 2 years and we'd like to continue to do that.

我想介绍一位来自“为美国而教“的代表“,这个组织一直致力于做好事，在世界上宣扬善，我想…,这门课，过去两年一直向他们提供支持,我们希望继续下去。

哈佛公开课 - 幸福课课程节选