警察

police;policemen;constable;constabulary
便衣～plainclothes policeman(policewoman);plainclothes/女～ policewoman/交通～traffic police/交通～助理traffic warden/～岗亭police kiosk;sentry box/～国家police state /～局police station/～局扣留police custody/～巡逻车patrol car/～当局police authority