偶一為之 [－－为－]

Jyutping ngau5 jat1 wai4 zi1
Pinyin ǒu yī wéi zhī

Definitions (CC-CEDICT)
  1. to do sth once in a while (idiom)
  2. to do sth more as an exception than the rule
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）