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Jyutping cang4 zoek3 maai6 tong4 gwan1 zi2 hung6 , jyu4 gam1 bat1 seon3 hau2 tim4 jan4
Pinyin céng zhāo mài táng jūn zǐ hǒng , rú jīn bù xìn kǒu tián rén

Definitions (Wiktionary)
  1. proverb
    Once people have suffered losses due to dupery, they will not easily trust other people's slick talk.