That was some, not too complicated, but hopefully understandable description of a whole area of biology called signal transduction.

这些并不复杂,却有希望描述清楚,生物学领域一大类现象,称为信号转导

耶鲁公开课 - 生物医学工程探索课程节选

But I'm going to suggest that I can divide knowledge into at least two categories.

不过我得假设,我能将知识分成两大类。

麻省理工公开课 - 计算机科学及编程导论课程节选

There's a whole class of antagonistic drugs that have been designed to influence your cardiovascular system.

现有一大类的拮抗剂类药物,全部是设计作用于心血管系统的

耶鲁公开课 - 生物医学工程探索课程节选

What about the fact that-- We said there's a family of arguments, all of which have the general structure, inference to the best explanation, you need souls in order to explain feature F. Plug in a different feature F and you get a new argument.

这个事实怎么样,我们说过有一大类观点,它们有一些共同的结构,有关于这个最佳解释的推论,需要用灵魂的概念,来解释功能特征F,代入一个不同的,功能特征就会得到一个新的论点

耶鲁公开课 - 死亡课程节选

It's useful to separate these kinds of signals into three categories.

将这些信号分为三大类会比较容易理解

耶鲁公开课 - 生物医学工程探索课程节选