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

So my answer is always going to be zero and therefore almost always going to be wrong. Yeah?

所以我的答案总会是,因此，几乎这总是错误的，对不？

哈佛公开课 - 计算机科学课程节选

It's not that it's totally wrong, but it's not bad.

这是完全错误的，但这个答案不坏。

耶鲁公开课 - 心理学导论课程节选