police

1.police指“警方”或“多个警察”，不指“一个警察”，说“一个警察”该用a policeman或a policewoman，在英国往往用a constable或a police constable。

2.police在指“警方”的时候前面往往有the，如The police are investigating the matter，但也可以没有the，如Police were called to keep order。注意在两句里police都被当作复数。

3.police在指“多个警察”的时候，前面有时有数字，有时没有。例如：Extra police were drafted into the district. 和A hundred extra police were drafted into the district. 可以说a few police, six or seven police, twenty police, thousands of police等，但two police和three police似乎不及two policemen和three policemen普通。

4.关于police officer，参见police-officer