这是消磨时间的好方式，特别是如果你只回答简单的问题，还有些人因为其他原因答疑解惑。

It can be a good way to kill time, especially if you stick to the relatively simple questions, but some people do it for other reasons.

youdao

我努力使他们相信，在接下来的一个小时(或是无论演讲持续的多长时间)内，我都是属于他们的，我将在这段时间内竭尽所能的帮助他们解答疑惑。

I try to convey the idea that I am theirs for an hour (or however long the presentation is) and that during that time I want to help them in any way I can.

youdao

一开始，医生们担心他们要花很长时间为病人们解答疑问。

At the outset, doctors were concerned that they would have to spend a lot more time answering questions from patients.

youdao

The other quick thing I want to say is that I do have office hours today from 3 to 5, so feel free to stop by if you have questions about problem-set 3 that you're finishing up.

我还想说一件小事,我今天的答疑时间是三点到五点，如果你对于第三次作业还有任何疑问,请在这个时间段来找我，不必客气。

麻省理工公开课 - 化学原理课程节选

And also, keep in mind that I have office hours today from 3 to 5.

还有一件事就是,要记住我的答疑时间是今天下午三点到五点。

麻省理工公开课 - 化学原理课程节选