That - irreversible changes happen all the time too but here I'm talking about very subtle small changes where you're changing the structure of the protein but only a little bit such that it can go back.

这种不可逆的改变时时刻刻都在发生,但我在这里想讲的是,对蛋白质结构进行微小的改变,小到这种改变是可逆的

耶鲁公开课 - 生物医学工程探索课程节选

It's very subtle.

是非常微妙的

耶鲁公开课 - 聆听音乐课程节选

You realize it's very subtle, because the very first thing in that equation, which is m, has not yet been defined.

你会觉得这很微妙,因为方程里最基本的量 也就是 m,还没有人给它下定义

耶鲁公开课 - 基础物理课程节选

And there are some subtle and very interesting differences across countries and across people, but there's also deep universals.

有一些细微，有趣的不同,不同的国家和民族，但也有极大的全球统一性。

耶鲁公开课 - 心理学导论课程节选