He's fallen behind with his school work again.

他又没有按时做学校作业。

I'm lucky that I'm interested in school work, otherwise I'd go crazy.

幸好我对学校作业还感兴趣，不然会疯的。

Some kids need extra help besides school work to grasp a few concepts.

除了学校的课业以外，有些孩子还需要进行额外的辅导来理解一些概念。

The teacher, who has taught for over 30 years, is in charge of the school work.

那位已经教了三十年书的老师，在负责学校工作。

His school work is suffering because of family problems.

由于家庭问题，他的学业日渐退步。