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Jyutping zaap6 caai1 fong4
Pinyin zá chà fáng

Definitions (粵典–words.hk)
  1. 名詞
    警署​偵輯部​,​拘留​疑犯​嘅​地方
    criminal investigation department of a police station

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Jyutping zaap6 caai1 fong4
Pinyin zá chāi fáng

Definitions (CC-CANTO)
  1. a detective's office [colloquial]