police staff的用法和樣例：
例句
- A fine working mechanism must be achieved in order to construct high quality police ranks.
摘要建設高素質的公安隊伍，必須要有一個好的工作機制。 - At present, the environment of the enforcement is becoming much worse, which is disadvantageous to beat the assaulting police.
有警察裝備差，抗暴力和成懾力弱，民警自我保護能力不強，公安機關依法維護合法權益的舉措軟弱無力，公安隊伍整體素質仍需提高等主觀因素。
