I have been teaching English in China for 5 years 与I have taught English in China for 5 years

问题描述:

I have been teaching English in China for 5 years 与I have taught English in China for 5 years
I have been teaching English in China for 5 years
I have taught English in China for 5 years
分别

第一句 还在做
第二句 已完成 不再做了