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Jyutping mou4 duk6 bat1 zoeng6 fu1
Pinyin wú dú bù zhàng fū

Definitions (Wiktionary)
  1. proverb
    A great man will not refuse to do something vicious, cruel or immoral when it is necessary.

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Jyutping mou4 duk6 bat1 zoeng6 fu1
Pinyin wú dú bù zhàng fu

Definitions (CC-CEDICT)
  1. no poison, no great man (idiom); A great man has to be ruthless.
Definitions (粵典–words.hk)
  1. 語句
    做人​做事​要夠​狠毒​。​全句​係​「​量小非​君子​,​無毒​不​丈夫​」​。​有​指​原句​應該​係​係​「​量小非​君子​,​無度​不​丈夫​」​但​因後人​誤讀​「​度​」​成​「​毒​」​而​變成​現句​。
    to be a tough man, to be cold-blooded, to be ruthless
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)