Now,it's very tempting at this point to say,look,of course Nothing could be easier ? Just imagine being in heaven forever,right?

现在我很想说，当然了,这没什么难的,只要想象永远在天堂就行了对不对？

耶鲁公开课 - 死亡课程节选

It doesn't even make sense now, they're not used in spectroscopy anymore, but this is where the names originally came from and they did stick.

现在看它没什么道理，它们在光谱学里也不这么用了，但这些名字,从这里面起源后来就一直沿用下来了。

麻省理工公开课 - 化学原理课程节选

How do you know whether it's in Cartesian form or in polar form?

这没什么了不起的,但是现在出现问题了？

麻省理工公开课 - 计算机科学及编程导论课程节选