冰壺秋月 [－壶－－]

Jyutping bing1 wu2 cau1 jyut6
Pinyin bīng hú qiū yuè

Definitions (CC-CEDICT)
  1. jade ice jug and autumn moon (idiom, from poem by Song writer Su Dongpo 蘇東坡|苏东坡); fig. spotless white and pure
  2. flawless person