homework
n [U]
1 work that a pupil is required to do away from school （学生的）家庭作业, 课外作业
The teacher gave us an essay (to do) for our homework. 老师给我们布置的家庭作业是写一篇作文.
2 (fig infml 比喻, 口) work done in preparation for a meeting, etc （会议等的）准备工作
The politician had clearly not done his homework, ie found out all he needed to know about a particular topic. 那位政治家显然还没有完成会前的准备工作.