do you smoke?______.it's years since i smoked

Do you still smoke?______.It's two years since I smoked. Do you still smoke?____,It's two years since I smoked." It three years since I smoked.翻译 It's three years since I smoked 这句话什么意思,理解不了 It's two years since I smoked.怎么理解这个句子? 求解英语翻译：It's 2 years since he smoked. It has been 4 years since I smoked.怎么翻译? It has been 5 years since I smoked... It has been 4years since I smoked. It is ten years since he smoked or didn't smoke 翻译 It's five years since he smoked It has been 2 years since since的问题5.-Do you smoke?-No,I don't.But I used to.It's two y