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Jyutping sei3 hoi2 zi1 noi6 gaai1 hing1 dai6
Pinyin sì hǎi zhī nèi jiē xiōng dì

Definitions (CC-CEDICT)
  1. all men are brothers
Definitions (粵典–words.hk)
  1. x
Definitions (Wiktionary)
  1. proverb
    all men are brothers