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Jyutping maau6 hap6 san4 lei4
Pinyin mào hé shén lí

Definitions (CC-CEDICT)
  1. the appearance of unity, but divided at heart (idiom); seeming harmony belies underlying disagreement
Definitions (粵典–words.hk)
  1. 形容詞
    雙方​表面​關​係​和​好​,​同意​對方​,​但​係​實際​有​分歧​,​唔​再​團結
    (of two parties) to seemingly agree but actually be at variance
    • 佢兩夫婦貌合神離噉,一定有問題。
      佢两夫妇貌合神离噉,一定有问题。
      keoi5 loeng5 fu1 fu5 maau6 hap6 san4 lei4 gam2, jat1 ding6 jau5 man6 tai4.
      The couple seemingly agree but are actually at variance, they must have problems.
Definitions (Wiktionary)
  1. phrase, idiomatic
    to appear united or intimate but in reality have different thoughts
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)
Examples (粵典–words.hk)
  1. Cantonese
    佢两夫妇貌合神离噉,一定有问题。
    佢兩夫婦貌合神離噉,一定有問題。
    keoi5 loeng5 fu1 fu5 maau6 hap6 san4 lei4 gam2, jat1 ding6 jau5 man6 tai4.
    • The couple seemingly agree but are actually at variance, they must have problems.