policeman vs fireman的意思

警察vs消防員

policeman bird───警用鳥

policeman birds───警用鳥

policeman's helmet───n.鳳仙花；警察的頭盔

police marksman───警察神槍手

policemans helmets───警察頭盔

police informer───內線犯人

police marksmen───警察神槍手