If you go to Denmark and you break a $100 bill, you're going to be given one of these, undoubtedly, the 500 kroner note, which is worth about $75-80, and it has Niels Bohr on it.

如果你去了丹麦，换了100美元，毫无疑问，你会得到其中一个像这样的，500挪威币，约为75-80美元，上面有波尔的头像。

麻省理工公开课 - 固态化学导论课程节选

This doesn't work. Can I meet you in some other time?

如果您觉得这个时间不方便，我能在其他时间见约你吗？”。

与教授的面谈 - SpeakingMax英语口语达人

You all know that when you do dy/dx, you're not supposed to cancel that d.

你们都知道 当你算dy/dx时,你不能把d约掉

耶鲁公开课 - 基础物理课程节选

Have you ever done that kind of thing with your professors?

你有没有这样约过教授见面呢？

与教授的面谈 - SpeakingMax英语口语达人

If you have an interest rate--this is approximately equal to-- one plus the real interest rate is equal to divided by one plus the rate of inflation.

如果你知道名义利率,那实际利率约等于,这里应该是=,/

耶鲁公开课 - 金融市场课程节选

cross the bridge, you're into Marin, East Bay, Yosemite,

穿过大桥，你就可以到马林、东湾区、约塞米蒂国家公园，

溺爱女儿的父亲 - SpeakingMax英语口语达人

You don't want to cancel the d in the derivative.

你不能在求导的时候约掉d

耶鲁公开课 - 基础物理课程节选

So, the point is whenever you have derivatives with something over dt, do not hesitate to cancel the dts This will be actually true as long as both quantities are vanishingly small.

关键在于,只要你推出的式子分母上有dt,不要犹豫,直接约掉,这个式子只在,两遍都是无穷小的情况下成立

耶鲁公开课 - 基础物理课程节选