名词 n. [U]

1.(学生的)家庭作业

I'll watch TV after I finish my homework.

我做完家庭作业去看电视。

2.家里做的工作;副业

3.(会议、讨论等前的)准备工作

Obviously the negotiator had done his homework.

显而易见,谈判人事前做了充分的准备工作。