There is no quick answer to this question.

VOA: special.2010.06.18

PROFESSOR: -- that this is not a quick clicker question, so you actually need to maybe write something down to figure out the answer.

教授：这个问题不是一眼就能看出来的，你们需要在纸上写一写,才能得到答案。

麻省理工公开课 - 化学原理课程节选

Don't be too quick to assume the answer that's got to be yeah,it's still wrong.

不要太快地理所当然地说答案就是，对。

耶鲁公开课 - 死亡课程节选