(pos:名詞)<explanation>yue:即係便衣#警察；唔著制服，著普通衫執勤嘅警察（量詞：個）eng:police officer in plain clothes<eg>yue:三個便衣捉咗個賊。 (saam1 go3 bin6 ji1 zuk1 zo2 go3 caak2.)eng:Three plain clothes police officers caught a thief.