They didn't know I was going to ask them the question, so I think they are really thrilled when they see their kids making it.

他们不知道我正要,问这个问题，所以当他们看见自己孩子制作的地图,感到很激动。

麻省理工公开课 - 媒体、教育、市场课程节选

For those who don't know what this cake means-- fix this in post production.

对于那些不知道蛋糕含义的人-,咦，在后期制作中把这段修复了。

哈佛公开课 - 计算机科学课程节选

I think our entertainment industry likes to make movies about people in finance, but they are inevitably portrayed as evil and I don't know why that is.

娱乐产业喜欢,制作关于金融业的电影，但里面的人物总是被刻画的很恶毒,我也不知道为什么。

耶鲁公开课 - 金融市场课程节选

It's just like you could say some of the principles of mechanics are very obvious, but to make an engine that operates in terms of those principles is not obvious.

这就像你能说,很多机械原理都显而易见，但是要根据这些原理,制作一个能够运转的发动机,就不那么容易了。

耶鲁公开课 - 金融市场课程节选