话到嘴边留三分 huà dào zuǐ biān liú sān fēn

DEFINITIONS

  1. A still tongue makes a wise head. (idiom)

CHARACTERS

话 huà speech, talk, language; dialect
到 dào go to, arrive, been to
嘴 zuǐ mouth, lips
边 biān edge, margin, side, border
留 liú stop, halt; stay, detain, keep
三 sān three
分 fēn divide; small unit of time etc.