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Jyutping daa2 laan6 zaai1 but6
Pinyin dǎ làn zhāi bō

Definitions (粵典–words.hk)
  1. 動詞
    破戒
    to break a vow of abstinence; literally: "to break the alms bowl"

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Jyutping daa2 laan6 zaai1 but3
Pinyin dǎ làn zhāi bō

Definitions (CC-CANTO)
  1. fail to maintain self-discipline; fail to keep up with one's resolution (restricted diet e.g.)
Definitions (Kaifangcidian)
  1. 開齋 – 开斋
  2. 開戒 – 开戒
  3. 破了齋戒 – 破了斋戒