In a city, town, or district, that part of the government that enforces the laws and keeps order.

警察机关。

An organized body of officers for keeping order.

警察(总称)。

To watch, protect, and keep in order by means of regular officers.

由警察守护；由警察维持秩序。

To maintain cleanliness in (a camp, barracks, etc.).

【军】整顿((up))。

To govern.

【古】统治。