"It's the first cup of coffee on the dresser when you are in the shower and it's warming up the car before you get into it on a wintry morning."

VOA: standard.2010.02.13

So, it's awkward to have to wait for a cow to get infected before you can vaccinate a population.

在给人们预防接种之前,你只有干等着,直到有一头奶牛感染了病毒才行

耶鲁公开课 - 生物医学工程探索课程节选

Sleep thought" is the sort of thing you get typically before you fall asleep and it's like "did I take the garbage out, ??

半睡半醒的想法是指那些,你睡着前所想到的东西,例如“我倒垃圾了吗？

耶鲁公开课 - 心理学导论课程节选

for exam 2, you still need to know and understand everything you learned in exam 1, but you can put off learning it completely until we get through, at least, next Wednesday before we start maybe spending time on these concepts outside of class.

为了掌握第二次考试的内容，你仍然需要知道和理解,在第一次考试前所学的全部知识，但是你可以先放一放，等到我们进行到，至少在下周三我们可能开始不在课堂上,讲这些内容之前。

麻省理工公开课 - 化学原理课程节选

You can't get what you want you could but it's a good idea to figure out what you want before you try and get what you want.

你无法得到想要的,不,你能,但最好事先弄清楚,就是,汝欲得之,必先知之

耶鲁公开课 - 博弈论课程节选

The answer is generally not because if you buy the stock before it goes ex-dividend, you get--you have to pay a higher price, but you get the dividend.

答案一般来说是不用,如果你买了股票,是在除息之前买的,你的买入价高,但能分到红

耶鲁公开课 - 金融市场课程节选