病人：医生，我有黄牙，我该怎么做？

Patient: Doctor, I have yellow teeth, what do I do?

youdao

全世界有18%的人正享受着身患癌症、到处讨烟、满嘴黄牙的乐趣，你要是这18%中的一员就知道我说的是什么。

The 18 per cent of the population who enjoy the cancer-causing, cats-bum-mouth-creating and teeth-browning pleasures of smoking know just what I am talking about.

youdao