He busied himself by tidying up his desk.
他忙于收拾书桌。
To pass the time she busied herself by tidying up the room.
为了打发时间，她忙于收拾房间。
英汉双解词典包含483723条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。