Busy sleeping.忙着睡觉

用法～+ v -ing忙着干某事

He is busy writing.

他正忙着写信。

He is busy preparing for the examination.

他忙着准备考试。

It just gets worse the longer Sara's gone.莎拉离开之后 ，她每况愈下

get worse转坏

As time goes by my memory seems to get worse.

随著时间的流逝，我的记忆力似乎越来越差。

Food shortages will probably get worse towards the end of the century.

食物短缺的情况到本世纪末可能更加严重。