Kat worked in administration for many years Kat had worked in administration for many yearsKat has been working in administration for many years有人能指明他们意思上的区别在哪里吗?有点confusing.thanks a lot.

问题描述:

Kat worked in administration for many years Kat had worked in administration for many years
Kat has been working in administration for many years
有人能指明他们意思上的区别在哪里吗?有点confusing.thanks a lot.

第一句意思是kate过去在管理部门工作了很多年
现在已经不在那工作了
第二句的意思是kate过去在那工作过
但是在过去的某一个时间这个动作停止了
第三句的意思是kate在那里已经工作很多年了
现在还在那里工作