便衣警察 [－－－－]

Jyutping bin6 ji1 ging2 caat3
Pinyin biàn yī jǐng chá

Definitions (CC-CEDICT)
  1. plain-clothed policeman
Examples (Wiktionary)
  1. Mandarin
    便衣警察
    便衣警察
    biàn yī jǐng chá
    • plainclothes police officer