How do you know that your parents, at least one of your parents satisfies the definition? Well I've reduced the problem from am I a natural born US citizen to is one of my parents a natural born US citizen?

这是一个递归的定义，你怎么知道你的父母,至少其中一个是满足天生的美国公民,这个定义的呢？,我已经把我是一个天生的美国公民这个问题？

麻省理工公开课 - 计算机科学及编程导论课程节选

And that may generalize again and it keeps going until you either get back to Adam and Eve, I guess. I don't think they were born in the US as far as I know, or you find somebody who satisfies that definition or you find that none of your parents actually are in that category.

降低到我的父亲或者母亲,是不是天生的美国公民呢,这个问题可以继续向下分解,你甚至可以追溯到亚当和夏娃的时候,据我所知它们并不是出生在美国的,或者你要么找到一个符合定义的人,要么发现你的父母都不满足条件。

麻省理工公开课 - 计算机科学及编程导论课程节选

And if food is anything you eat, it gives you a nutrient, then basically everything satisfies the criteria for food; not everything in the world, but most things would.

若不论吃什么,只要提供营养就是食物,那基本上没有什么不满足食物的定义,倒不是说一切东西,至少绝大部分都满足

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

For example, if t* is the time you hit the ground, then t* satisfies the equation h - 1/2 g ^2 = 0.

例如,如果在 t* 时刻落地,那 t* 就满足等式 h - 1/2 g ? ^2 = 0

耶鲁公开课 - 基础物理课程节选