Since my mother was busy teaching school, somebody had to take care of me.

VOA: special.2010.01.30

I'm busy with school. It takes up a lot of my time, so.

我的学业很忙。那占据了我大部分时间。

参加10公里竞走 - SpeakingMax英语口语达人

The inside of Ganado High School is busy with children hurrying to classes.

VOA: special.2011.07.01

While most American students are on their summer vacations, many teachers are busy attending training programs and getting ready for the coming school year.

VOA: standard.2010.08.10