A doctor told his patient there was nothing really the matter with him. All you requir is more outdoor life, walk two or three miles regularly1 everyday. By the way, what's your business?
I'm a letter|carrier. the patient answered.
大夫告诉他的患者说他没什么问题。你目前需要的就是更多的户外生活,每天坚持走二三里路。顺便问一下,你是做什么工作的?
我是邮递员。患者回答。