police是沒有復(fù)數(shù)的，準(zhǔn)確來說，police本身就是一個復(fù)數(shù)的代稱，具體看一下英文解釋：the police are the official organization that is responsible for making sure that people obey the law. 所以，police本身就是一個集體的總稱，它代表所有**，是一個整體，所以沒有復(fù)數(shù)形式。