忙碌：busy；bustling

短语：(be) busy with 忙于；

busy at adj.忙于；

be busy with 忙于…；

be busy in 忙于做(某事)；

be busy doing 忙着做

He is a very busy man.

他是个大忙人。

No matter how busy he is, he is ready to help others.

不管他多忙, 他总是乐意帮助别人。

She is too busy to look after her child.

她太忙, 没有时间照料孩子。

She's busy with some important work.

她正忙于一些重要工作。

He is busy preparing for the examination.

他忙着准备考试。