It was too busy dealing with events inside its own borders.

VOA: special.2010.07.08

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

From shopping malls in the United States, stocked with Chinese-made goods, to busy Chinese factories where the goods are made, it's evident the two countries rely heavily on each other.

VOA: standard.2009.11.10