Definition: to do something that someone else was going to do because they cannot be there Level: C2
你能在明天的会议上替我一下吗？
Could you ___stand ___in for me at tomorrow's meeting?
主演生病了，所以她的替补演员不得不顶替上场。
The lead actor got sick, so her understudy had to ___stand ___in.
教授被临时叫走了，所以一位同事同意代为授课。
The professor was unexpectedly called away, so a colleague agreed to ___stand ___in and deliver the lecture.
