Eighty-five percent of the city was underwater. Most people not knowing if New Orleans would ever come back.

VOA: standard.2010.02.08

Important lesson, so that there would be some predictability in the results and I would have some, if you will, smoke test for knowing whether or not I was getting, my code seemed to be working.

这很重要，因为这样我就可以预测,结果会是多少了，如果你愿意，我们可以做烟气试验,来看我的代码是否工作正常。

麻省理工公开课 - 计算机科学及编程导论课程节选

So each of these cups again have different weights if I want to find the lightest of them I might start not knowing which is which.

它们的重量互不相同，如果我要,找出最轻的一个，而我根本不知道会是,哪一个。

哈佛公开课 - 计算机科学课程节选