STUDENT: Right, we're going to do that in a second, but the answer is Fibonacci numbers, we define the first two.

学生：听不见：,我们马上会试一试，但是答案是斐波那契数列，我们可以定义下最初的两个数。

麻省理工公开课 - 计算机科学及编程导论课程节选

I'm going to define a class, and in particular, what I'm going to do, is walk through what that says.

我们碰到了一个问题，这个问题就是，我们想要建立，一个抽象数据类型。

麻省理工公开课 - 计算机科学及编程导论课程节选

Alright, next thing I want to do is to define the vector that plays the role of the number 0.

接下来我想做的是定义一个矢量,它相当于数字0

耶鲁公开课 - 基础物理课程节选

That's a complicated thing that accountants figure out and accountants find it difficult to define the earnings of a company, but they do something and they come up with a number.

会计们会计算这个复杂的问题,他们还会发现公司收益很难定义,但是他们会想办法,得出一个数字

耶鲁公开课 - 金融市场课程节选

The problem it solves for the cell is how to do I make a barrier around myself to define what's in me and what's outside of me when most of what's around me and what's in me is water.

它为细胞解决的问题是,当我体外和体内大部分都是水情况下,我怎样在自己周围设置一个界线,来区分什么是体内的,什么是体外的

耶鲁公开课 - 生物医学工程探索课程节选

The person who does that best is Michael Pollan, and when you read his book, In Defense of Food, he spends some time in the book defining what food is and working through this--this quagmire of how do we define food and what's acceptable to eat, what's socially acceptable, what's personally acceptable.

这一点上迈克尔·伯伦做得最好,你们可以看看他写的书《为食物辩护》,他在书中给食物下了定义,并深入地探讨了这个难题,即如何区分食物与能吃的东西,社会普遍接受的东西,个人能够接受的东西

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

If you were to say to me, what do you think is the most important thing, however you define thing, that has changed the character of life in the United States in the twentieth century, I would say the disappearance of farmers.

如果你问我,我认为什么才是,最重要的东西,你认为是什么,在二十世纪改变了,美国人的生活方式,我会说是农民退出了历史舞台

耶鲁公开课 - 古希腊历史简介课程节选

But before you even do that, I want to define for you an important concept, which is the velocity at a given time, v .

但在这之前,我要给你们定义一个重要的概念,也就是给定时刻的瞬时速度v

耶鲁公开课 - 基础物理课程节选