And I just want to point out here in terms of things that you're responsible for, you should know that the most probable radius for a 1 s hydrogen atom is equal a nought.

在这里,我想要指出的是，你们要知道氢原子１ｓ轨道,最可能距离等于ａ０

麻省理工公开课 - 化学原理课程节选

You've got things like grains and fruits that we know people should be eating.

还有多吃谷物和水果,它们显然对人体很有利

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选