A:How long have you been a fireman? 你当消防员几年了?
B:20 years. 20年. A:Wow,you've probably seen it all. 哇,你可能什么事情都看过.
B:I guess so. 我猜是吧. A:Are you still working on that dress for the wedding? 你还在为婚礼缝制那件西装吗? B:Yep.Can you believe it? 是的,你相信吗? A:How long have you been working on that dress? 那件西装你缝制多久了? B:It's been 3 months now. 到现在已经3个月了. How long have you been a fireman? How long have you been working on that dress? 你当消防员几年了? 那件西装你缝制多久了? How long have you been at this job? How long have you been shopping? 你做这个工作几年了? 你买东西买多久了?
