A:Sorry to have smoked in your room.对不起,在你的房间抽烟了。
B:Don’t worry. I’ll open the window.别担心。我会打开窗户的。
A:It’s very kind of you.你真是体贴。
B:Smoking is harmful for your health.吸烟有害健康。
A:I know. I’ll try to give it up.我知道。我会试着戒掉的。