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Jyutping naam4 zing1 bak1 fat6
Pinyin nán zhēng běi fá

Definitions (CC-CEDICT)
  1. war on all sides (idiom); fighting from all four quarters
Definitions (粵典–words.hk)
  1. 動詞
    一個​人​打​咗​好​耐仗​,​經歷​過無數​戰事
    have fought in countless battles
  2. 參看
    南征北討