n. 警察部门;警方;警察;治安;
vt. (警察、军队等)巡查;维护治安;(委员会等)监督;管制;
adj. 警察的;有关警察的;
🗣️ 情景例句
Examinations are at hand.
考试在即。
Every one's faults are not written in their foreheads.
知人知面不知心。
Some of the bigger firms are engaged in researches which are of such general and fundamental nature that it is a positive advantage to them not to keep them secret.