When people say,You know,everyone dies alone, you're supposed to be gaining some deep insight into the nature of death.

当人们说，每个人都孤独而死，这应该让你得到对死亡本质的深刻认识。

耶鲁公开课 - 死亡课程节选

Seventy-nine. In fact, if you add up each of these numbers, 9 you should get the decimal number 79 79 from this binary number here.

9，事实上，如果你把这些数字累加，你应该能从这些二进制中9,得到十进制数。

哈佛公开课 - 计算机科学课程节选

You could run through a little loop to say keep trying until you get one. But one of the ways I could deal with it is what's shown here.

你可以运行一个小循环来不断地做,直到得到一个输入,但你应该做的是弄明白这里到底要干什么。

麻省理工公开课 - 计算机科学及编程导论课程节选

That means, when I take two derivatives, I want to get a, then you should know enough calculus to know it has to be something like at^, and half comes from taking two derivatives.

也就是说,当我想求二阶导时,得到了a,你应该有足够的微积分知识,才能知道必须有类似at^的项,而这个1/2则是因为求了两次导数

耶鲁公开课 - 基础物理课程节选

Conversely, if you get an answer and it doesn't seem to make sense, then you've got to go back and ask, am I violating some of the assumptions, and here you will find the assumption that the particle had that acceleration a is true as long it's freely falling under gravity but not when you hit the ground.

反过来说,如果你得到一个结果,发现似乎是错的,那么你就应该回过头来问问自己,我是不是违反某些前提了,这个模型中,你就发现,只要质点在重力作用下自由下落,质点具有加速度a的前提是正确的,但是落地后就不成立了

耶鲁公开课 - 基础物理课程节选