If you have coffee-stained teeth, a tooth-bleaching kit can help.

如果你有咖啡染色斑，可用牙齿漂白试剂盒。

youdao

If you have coffee-stained teeth, a tooth-bleaching kit can help.

如果你有咖啡染色斑，可用牙齿漂白试剂盒。

youdao