The better prepared students have to formulate the concepts, so that they can explain them, which really helps.

准备更好的学生得,建立知识概念，那样才能解释他们，这对他们非常有帮助。

麻省理工公开课 - 媒体、教育、市场课程节选

The notion of recipes, the notion of computation, why you want to do this, what you're going to learn.

秘诀和计算的一些概念啊，以及我们为什么要学这些知识，和要学习的具体内容。

麻省理工公开课 - 计算机科学及编程导论课程节选

And I wanted to show that common knowledge is not such an obvious a concept, as I've made it seem on the board.

我想让大家明白,共同知识并不是像我写在黑板上的,是一个想当然的概念

耶鲁公开课 - 博弈论课程节选

What I'm really referring to is what I think is the very original, the deep concept that underlies theoretical finance-- I wanted to get that first.

今天我要教授的知识,我认为是金融理论中最基本最核心的概念,我想先说说这个

耶鲁公开课 - 金融市场课程节选

But not for the sake of hashing through the history of philosophy not for the sake of analyzing philosophical concepts the way analytical philosopher would, but rather,with that kind of background preparation, seeing things that others might not.

不是为了深入讨论,哲学的历史,不是为了像,一个分析哲学家那样,分析哲学概念，而是在有了那种背景知识的准备后，看到一些别人可能看不到的东西。

麻省理工公开课 - 电影哲学课程节选