Hobbes provided us with the definitive language in which even today we continue to speak about the modern state.

霍布斯提供了一种权威性的概念,而直到今天,我们依然用它来描述现代国家。

耶鲁公开课 - 政治哲学导论课程节选

The process to control it is intriguing and interesting but the heart of the computer is simply this notion that we build our descriptions, our recipes, on a sequence of primitive instructions.

这个控制它的过程很耐人寻味，很有意思,但是计算机的核心仅仅只是,我们在初始指令序列上，建造描述、方法的一个概念罢了。

麻省理工公开课 - 计算机科学及编程导论课程节选

We have instead what's called a probability density when we have continuous random variables.

所以我们用概率密度的概念来描述,连续型随机变量的情况

耶鲁公开课 - 金融市场课程节选

So we can completely describe an orbital with just using three quantum numbers, but we have this fourth quantum number that describes something about the electron that's required for now a complete description of the electron, and that's the idea of spin.

所以我们可以用３个,量子数完全刻画轨道，但我们有这第四个量子数,来完整的,描述电子，这就是自旋的概念。

麻省理工公开课 - 化学原理课程节选