How can we prevent murderous schoolyard violence in children who have access to weapons,poor parental supervision, and a mean streak?"

如何防止校园暴力,这些暴力事件通常是由掌握武器，缺乏父母监管，或受到教唆的孩子引起的“

哈佛公开课 - 幸福课课程节选

How do we explain when babies come to know things that they didn't originally know?

我们如何解释,婴儿何时掌握了原本并不知道的知识

耶鲁公开课 - 心理学导论课程节选

And do a little practice in manipulating these differentials.

以及掌握,如何使用它们。

麻省理工公开课 - 热力学与动力学课程节选

We'll talk about some chemistry today, what DNA molecules are like, why they have the behavior that they do, and you need to understand this in order to understand how you manipulate DNA.

今天我们会谈到一些化学结构,比如DNA分子的形态,它们为什么会以这种形态存在,你必须先掌握这些,才能理解如何操控DNA

耶鲁公开课 - 生物医学工程探索课程节选