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Jyutping gau2 on1 zoeng2 zi6
Pinyin jiǔ ān cháng zhì

Definitions (Wiktionary)
  1. phrase, idiomatic
    Synonym of 長治久安/长治久安 (chángzhìjiǔ'ān, “long-term peace and stability”).
    (syn.) 长治久安, 長治久安