But that was before taking positive psychology class. That was before taking the class.

但那是在上积极心理学课之前，是在上课之前。

哈佛公开课 - 幸福课课程节选

But he started--the pigeons started to think, effectively, what was it I did just before that last piece of corn came?

那些鸽子会想,上一粒谷粒掉过来之前我做了什么

耶鲁公开课 - 金融市场课程节选

Welles heard that obviously, and he quickly came back. But when she died, he stopped taking lessons, before that, he was adept before he was ten years old.

威尔斯当然听到了，所以他,很快回来了，但在,他母亲去世之后，他就不再上课了，在这之前，在他十岁的时候他就对乐器很熟练了。

麻省理工公开课 - 电影哲学课程节选

But that doesn't mean that every part of my body existed before I was born, and that every part of my body will continue to exist after I die.

但是这并不意味着,组成我身体的所有部件都是先于我的存在,并不是每一个部件,都会在我死后依然存在

耶鲁公开课 - 死亡课程节选

But it was--It's funny that such a simple idea hadn't been used before.

但这...很有意思的是,如此简单的方式此前从未被使用过

耶鲁公开课 - 金融市场课程节选