名詞 police:

1. the force of policemen and officers
   同義詞：police force, constabulary, law

動詞 police:

1. maintain the security of by carrying out a control
   同義詞：patrol

1. His strange behavior made the police suspicious.
   他不尋常的舉止引起了警察的懷疑。
2. The police are always hounding me.
   警方一直在追捕我。
3. The police recovered the stolen jewellery.
   警察找回了被盜的珠寶。
4. It's the duty of the police to preserve the public order.
   維護公共秩序是警察的職責(zé)。
5. The police scoured the area looking for the lost child.
   警方搜遍這個地區(qū)尋找這個走失的孩子。
6. Our neighbourhood police are very friendly.
   我們鄰近的警察非常友善。
7. The police have caught the murderer.
   警察已經(jīng)抓獲殺人兇手。

po.lice

n.（名詞）
【復(fù)數(shù)】 police
The governmental department charged with the regulation and control of the affairs of a community, now chiefly the department established to maintain order, enforce the law, and prevent and detect crime.
警察局：負(fù)責(zé)約束和管理一個社區(qū)事務(wù)的政府部門，現(xiàn)在被建立主要是用來維持秩序、執(zhí)行法律和防止和偵破犯罪行為的部門

A body of persons making up such a department, trained in methods of law enforcement and crime prevention and detection and given the authority to maintain the peace, safety, and order of the community.
警察：組成這樣一個部門的一群人，他們被專門訓(xùn)練來掌握執(zhí)行法律和防止并偵破犯罪行為的方法，被授予維護一個社區(qū)的和平、安全和秩序的職權(quán)
A body of persons having similar organization and function:
類似警察的人員：有相似組織和職能的一群人：
例句：
campus police.Also called police force
校園警察也作 police force

(used with a pl. verb)Police officers considered as a group.
（與復(fù)數(shù)動詞連用）（總稱）警察：被看作一個群體的警官
Regulation and control of the affairs of a community, especially with respect to maintenance of order, law, health, morals, safety, and other matters affecting the public welfare.
警政：對一個社區(qū)的事務(wù)的管理和控制，特別是對有關(guān)秩序、法律、健康、道德和安全的維護，以及其它影響到公共福利的事情

The cleaning of a military base or other military area:
內(nèi)勤值勤：對軍事基地或其它軍事地區(qū)所進行的清理：
例句：
Police of the barracks must be completed before inspection can take place.
在檢察之前，營房的內(nèi)務(wù)值勤必須完成

The soldier or soldiers assigned to a specified maintenance duty.
內(nèi)務(wù)值勤人員，勤務(wù)兵：被指派負(fù)責(zé)某一特定維持任務(wù)的士兵或士兵們
n.attributive.（定語名詞）
Often used to modify another noun:
常被用來修飾另一個名詞：
例句：
police uniforms; the police department.
警察的制服；警察部門

v.tr.（及物動詞）
po.liced,po.lic.ing,po.lic.es
To regulate, control, or keep in order with or as if with a law enforcement agency.
維持治安：通過或仿佛是通過一個執(zhí)行法律的機構(gòu)來約束、管理或保持秩序
To make (a military area, for example) neat in appearance:
整理內(nèi)務(wù)：使（如，一個軍事地區(qū)）看上去整潔：
例句：
policed the barracks; policing up one`s room.
整理營房內(nèi)務(wù)；整理某人的房間

來源：
French
法語
from Old French policie [civil organization]
源自 古法語 policie [居民組織]
from Late Latin polotoa
源自 后期拉丁語 polotoa
from Latin [the State]
源自 拉丁語 [國家]
from Greek politeia
源自 希臘語 politeia
from politôs [citizen]
源自 politôs [公民]
from polis [city] * see pel…- 3
源自 polis [城市] *參見 pel…- 3

【引伸】
police.able
adj.（形容詞）
polic.er
n.（名詞）