It has been 5 years since I smoked...

It has been 5 years since I smoked... It has been 4 years since I smoked.怎么翻译? It has been 4years since I smoked. It has been 4 years since I smoked.怎么理解,有点怪怪的... It has been 4 years since I smoked.为什么翻译成 我戒烟4年了? 翻译 It's five years since he smoked It has been 2 years since It three years since I smoked.翻译 It has been 4 years since I smoked .居然翻译为：我戒烟4年了.大家说说原因和自己的理 请问一个英语问题.It has been 4 years since I smoked.这句话的翻译是“我戒烟四年了”对 英语翻译It has been 4 years since I smoked.我戒烟4年了.（不是“我抽烟4年了”） 搞 It has been 3 years since he smoked.为什么这句话的意思是他不吸烟已经三年了? It has been 5 years since I was away from the army,but now I