I think you may have defined it already, but I couldn't find a definition of strictly in the book we have.

我想你之前已经定义过了,但是我在课本里没有找到,“严格”的定义

耶鲁公开课 - 博弈论课程节选

As I say in the textbook there, the beginning of the Beethoven Fifth is something like a musical punch in the nose.

正如我在课本里所说的,听到贝多芬的第五交响曲开始乐段,就像有人用音乐,在你鼻子上猛击了一拳

耶鲁公开课 - 聆听音乐课程节选

There is a chapter in the back of the book, I think it's chapter 25, that goes over this, it refreshes your memory of such calculus.

课本的后面有一章,我记得是25章,会涵盖这些内容,你们可以去重温一下微积分

耶鲁公开课 - 博弈论课程节选

That is the good news.The bad news is there isn't a text that fits this syllabus, so we choose readings from various sources.And the text that I have chosen is the best of a bad lot.

那是个好消息，坏消息是,没有与课程大纲对应的课本，我们从很多的资源中选取阅读材料,我选的课本不过是糟粕中的精华。

麻省理工公开课 - 固态化学导论课程节选