police和cop的区别.

police和cop的区别. cop和police 的区别 cop和police有什么区别? police和cop 又什么区别吗?拜托各位大神 如何区别cop; Police; Detective; Office sir FBI和Police的区别 "police""policeman"和"policewoman"的区别 英文为什么说police是cop? police officer和policeman和policemen的区别? at the police station 和in the police station的区别 police与policeman的区别 policeman ,police officer 和police superviser三这有什么区别?