Obviously we don't expect you to know exactly what the distances are, but you should be able to compare them relatively.

当然我们不要求你么,要能知道具体这些位置是多少，但你们要能够相对比较它们。

麻省理工公开课 - 化学原理课程节选

And so this is not like a math problem set or a physics problem set. Or, like a high school physics lab, where we all know what the answer should be, and you could fake your lab results anyway.

或是物理问题集合,又或者是高中的物理实验室，我们对这些问题都有确切的答案，或者你可以把你的实验结果改成正确的，有些事情是不能明确界定的。

麻省理工公开课 - 计算机科学及编程导论课程节选

You just need to remember what's happening to z effective, which really tells us what's happening with all the trends, and once you know z effective, you can figure out, for example, what direction the atomic radius should be going into.

你只需要记住有效核电量的规律，实际上它会告诉我们所有的规律，只要你知道了有效核电量的规律，你就可以判断，比如，原子半径会向着哪个方向发展。

麻省理工公开课 - 化学原理课程节选

He should have said that you know what, harmony is not really invisible or can't be destroyed.

他应该说，知道么，和声并不是真的无形,并不是不可毁灭。

耶鲁公开课 - 死亡课程节选

So you should know when you look at a graph like this what it's doing.

因此当你看到这样一个图表时,要知道它是怎样运动的

耶鲁公开课 - 基础物理课程节选

We have to know what to pay attention to People who are not good in focusing their attention on the right things -I'm not just talking about attention deficit disorder, I'm talking about some more high-level question of how you know what you should be paying attention to.

我们需要知道哪些值得注意,那些主次不分的人,我谈论的不仅是注意力不足过动症,还有在面对复杂问题时,你如何知道哪些事情值得关注

耶鲁公开课 - 金融市场课程节选

You shoot something, you should know when it will land, where it will land, with what speed it will land, how high it will go.

抛出一个物体,我们要知道落地时间,落地位置,还有落地的速度,最高点的高度

耶鲁公开课 - 基础物理课程节选

What do you know the bond angle should be?

你们觉得键角是多少？

麻省理工公开课 - 化学原理课程节选

You should know what multiplying a vector by a number means.

你需要知道数乘矢量的意义

耶鲁公开课 - 基础物理课程节选