be busy with sth的中文
问题描述：
be busy with sth的中文
答
忙于做某事
答
正忙于做某事
正忙着干.....
答
be busy with sth 忙于某事
be busy with(或at,over,about) one's work 忙于工作
be busy in doing sth 忙于做某事