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

OK. So to do this, we need a little more abstract way of talking about efficiency, and so, the question is, how do we think about efficiency? Typically there's two things we want to measure.

好，为了达到这个目的,我们需要用一种有点，抽象的方式去讨论效率，这衍生出来,一个问题，我们该怎么去认识效率？,主要来说我们有两个要量化的东西。

麻省理工公开课 - 计算机科学及编程导论课程节选

The next phase, concrete operations, from seven to twelve, you can solve the conservation problem, but still you're limited to the extent you're capable of abstract reasoning.

下一阶段,具体运算阶段,七到十二岁,儿童可以解决守恒问题,但儿童的抽象推理能力仍然有限

耶鲁公开课 - 心理学导论课程节选

They talk a lot, as Sarah said, they talk a lot about abstract questions, and this puts the meaning of the story in that abstract register. Is it a love story, or is it a religious story, a mystifying story?

他们谈论了很多，如萨拉所说，他们谈论了很多,很抽象的问题，这使得这个故事,变得抽象了，这是个爱情故事吗，有的或者是个宗教故事，还是个神秘故事呢？

耶鲁公开课 - 1945年后的美国小说课程节选