In that case, we understand it as a sequence of cross-sections rather than something that somehow organically changes through time.

这样，我们就是在学习一个个语言的横截面,而不是语言自然的变化过程。

耶鲁公开课 - 文学理论导论课程节选

Student: Wouldn't natural selection favor the people ? who learn all these things and then practically try to apply them?

学生：自然选择会不会垂青,学习并践行这些知识的人？

耶鲁公开课 - 心理学导论课程节选

So there is about between 12-16 rules that are there if you learn them, just naturally your voice will take in fluctuation and intonations. So I had the opportunity to learn actually here in New Jersey from people.

大概有12至16条字母的发音规则,如果你学习了，那么很自然地你的声音,就会有起伏和音调,我当时正好有机会在新泽西学习这个。

普林斯顿公开课 - 人性课程节选