"It was like a giant jigsaw puzzle and the more we started to unearth and peel back the onion of who this guy was and what happened to him in the past and trying to truly understand the reason why he would be so obsessed with a specific case once we start to uncover these things about him we realized that once we explain one set of circumstances we needed to go even further with another set of circumstances."

VOA: standard.2010.02.27

So now thankfully I found the lightest one which happens to be this guy here and so what's just happened?

现在我找出了最轻的，它就是,这个杯子，那么刚刚发生了什么呢？

哈佛公开课 - 计算机科学课程节选