你的答案是错误的，我觉得应该是B。

Your answer is wrong. I think it's B.

youdao

我能确定你的答案是错误的！

I can make sure your answer is wrong!

youdao

但是现在我让你告诉我一个聪明，智慧的很好的人为什么会相信你的答案是错误的。

But now I want you to tell me how a very intelligent, thoughtful, very good person, could believe that you are wrong.

youdao

And, that's a good thing to know because if you come out with an answer that's somewhere near the diameter of the universe and it's supposed to be the diameter of an atom, then you will know that you probably made a mistake.

这是我们需要知道的,因为当你做一道题得到的答案,是宇宙的直径,而正确答案是原子直径时，你能很快发现你的错误。

麻省理工公开课 - 固态化学导论课程节选