So exactly how much exercise do you need to do to gain all of these great health effects?

VOA: special.2010.06.08

I may be exaggerating a little bit. But every year we gain more knowhow about how to do it.

我可能有点夸张，但每年,我们都获得了更多做法。

麻省理工公开课 - 媒体、教育、市场课程节选

Neuropsychologists love when motorcyclists drive without helmets because through their horrible accidents we gain great insights into how the brain works.

他们喜欢不带安全帽就能开摩托车的时代,因为通过他们严重的交通事故,我们能够了解大脑是如何进行活动的

耶鲁公开课 - 心理学导论课程节选

How to gain, how to keep, how to recover happiness, is in fact for most men at all times the secret motive of all they do, and all they are willing to endure."

如何获得，如何保持，如何重获快乐，是多数人时刻怀有的秘密动机，是他们愿意忍受一切的目的“

哈佛公开课 - 幸福课课程节选

I mean, how did you gain confidence?

关于怎样增加信心的问题？

耶鲁公开课 - 金融市场课程节选

Now, how do they gain?

那政府如何获利呢？

耶鲁公开课 - 公正课程节选