警員的用法和樣例：
例句
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警察局說(shuō)該局反對非執法人員私自執法，可是轄區警員及當地居民對該［警衛］公司的策略頗感興趣。
The Police Department says it opposes vigilante justice, but officers on the beat and neighborhood residents say they are enthusiastic about the company's tactics. -
警員史密斯和瓊斯正在巡邏。
Police Constable Smith and Jones are on patrol.
