Sense doesn't simply end at the end of a ten-syllable line.

一句诗有了10个音节意思却不一定表达完。

耶鲁公开课 - 弥尔顿课程节选

And you don't always wind up with the right answer or wrong answer, but just different points of view.

最后不一定有答案的对错，只是不同的看法。

哈佛的讨论文化 - SpeakingMax英语口语达人

It doesn't have to be but it might be.

不一定是不过有可能。

耶鲁公开课 - 现代诗歌课程节选

and they reply in German, "Yes, I'm French," that doesn't--language doesn't necessarily tell you how people feel about their identity. Some sage once said, I don't know who it was, but I love this expression, that a language is a dialect with a powerful army.

然后他们用德语回答,"我是法国人",不一定--语言不一定能代表,对自己的身份认同,有个哲人说过,我忘了是谁,但我特喜欢这句,说语言就是有强大军队撑腰的方言

耶鲁公开课 - 1871年后的法国课程节选

I think at Yale, you know, you might not have the highest test scores or the highest grades,

我觉得在耶鲁，你不一定要有最高的考试分数或者最高的成绩，

成绩不是全部 - SpeakingMax英语口语达人

Adiabatic q equal to zero. It's also delta H 0 which is zero. The two didn't necessarily follow because remember, delta H is dq so p is only true for a reversible constant pressure process.

在这个过程中ΔH等于,绝热的所以q等于0，而ΔH也等于,这两个也不一定有因果关系,因为，记住，ΔH等于dq只有在恒压。

麻省理工公开课 - 热力学与动力学课程节选