例如：

　　1.The plan for the new book is on ice at the moment.I've been busy with too many other things.

　　寫(xiě)那本新書(shū)的計劃暫時(shí)擱一下,我一直忙于太多其它的事情.

　　2.I was busy with my children.

　　我忙于照顧孩子.

　　3.He is busy doing his homework.

　　他正忙著(zhù)做家庭作業(yè).

　　4.I am busy working.

　　我正忙于工作.