policeman怎么读,nurse怎么读

为什么英语说 police officer 比 policeman 好?
随便贴一个超帅的澳门policeman!
为什么英语说 police officer 比 policeman 好?
if you kill all of the policeman or civilians, you win the
kejian unit 2 he's a doctor,nurse,policeman,teacher,farmer