I went back to the station-house to turn in my badge and gun.我回到警局交还警徽和佩枪。He pulled out his badge and said he was a cop.他拿出警徽说自己是警察。The suspended officer was asked to turn in his badge and gun.停职的警官被要求交回警徽和手枪。The police officer flashed his badge.警察晃了晃他的警徽。