And if I think back to my own childhood again, not that that was the glory days by any means, but I mean people weren't falling over hour after hour from dehydration because they didn't have a water bottle with them.

如果我回忆一下自己的童年,不是说我的童年有多光辉灿烂,而是我想说当时人们也没有因脱水而倒下,而因为他们没有随身携带水壶

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

So, let me get a little bit more specific about what we mean by nodal plane and where the idea of nodal plane comes from, and nodal planes arise from any place you have angular nodes.

关于节面的意义,或者节面概念的起源，让我们讲的更具体一点，节面起源于角向节点。

麻省理工公开课 - 化学原理课程节选

The other tip I'm going to give you is any time you see a chain molecule, by chain I just mean many different atoms written out in a row.

我要告诉大家的另外一个小窍门是,每当你看到一个链状分子，链状的意思是说很多,不同的原子写成一行的形式。

麻省理工公开课 - 化学原理课程节选