"There is still a lot of firsts to do and hopefully we will run out of those firsts pretty quickly because it is certainly my desire that one of the legacies that I would certainly like to leave behind is bringing in more African-American astronauts."

VOA: standard.2010.02.02

Well, that's the sense of theory that I like to work with, and I would pause over it by saying that after all, there is a difference and practice and we shouldn't too quickly, at least, confuse the terms.

我想在此讨论的就是理论的这种解释，不过我想补充一句，理论和实践是两回事,至少我们不能混淆这两个名词。

耶鲁公开课 - 文学理论导论课程节选

But you don't compress it so quickly that you're not in there reversible process so you compress that if you were to feel the temperature of the air and you can feel it through the nozzle gives you an idea of the temperature of the air inside your bicycle pump.

但是压缩速度,也不能太快,否则就不是,可逆过程了,这样当压缩气体时,从喷嘴可以感受到,内部气体的温度。

麻省理工公开课 - 热力学与动力学课程节选

Then the first time so he came up a major third there and then quickly backed off with just a half step below it, which completely gave it a different feel.

于是开始的时候,乐曲中出现一个大三和弦,然后快速地降低了半个音,这种变化给人完全不同的感受

耶鲁公开课 - 聆听音乐课程节选