police officer 是指警察部队的正式成员，主要负责维护法律秩序、预防和调查犯罪等工作。其英式音标为 /pəˈliːs ɒfɪsə(r)/，美式音标为 /pəˈlis ˈɔfɪsɚ/，词性为可数名词，复数形式为 police officers，同义词包括 policeman、law officer 等。

短语搭配

a police officer：一名警官，泛指单个警察人员

senior police officers：高级警官，指警队中的管理人员

junior police officer：初级警务人员，通常指基层警员

obstruct a police officer：妨碍警察执行公务，属于违法行为

undercover police officer：卧底警察，伪装身份执行秘密任务

用法示例

描述身份："He was once a police officer before retiring."（他退休前曾是一名警察。）

日常工作："A police officer was directing the traffic at the intersection."（一名警察在十字路口指挥交通。）

法律场景："She was charged with obstruction of a police officer."（她被指控妨碍警察执行职务。）

例句10句

The police officer radioed for backup when he noticed the suspicious vehicle.
（警察发现可疑车辆后用无线电呼叫支援。）

Two police officers had a narrow escape when their car was attacked.
（警察的车辆遇袭时，两名警官死里逃生。）

A police officer must remain calm even in dangerous situations.
（警察即使在危险情况下也必须保持冷静。）

He was arrested after assaulting a police officer during the protest.
（他在抗议中袭击警察后被捕。）

The police officer asked to see my driver’s license during the check.
（检查时警察要求查看我的驾照。）

More civilians are now working in police stations, freeing officers from paperwork.
（更多平民在警局工作，使警察从文案中解脱出来。）

A police officer was speared to death while pursuing a suspect.
（一名警察在追捕嫌疑人时被刺死。）

The gang tried to bribe the police officer, but he refused immediately.
（团伙试图贿赂警察，但他立即拒绝了。）

Police officers fear unfair comparisons between their performance and others’.
（警察担心自己的表现与他人被不公正比较。）

She testified in court about what the police officer had witnessed.
（她在法庭上就警察的目击情况作证。）

从维护交通秩序到打击犯罪，police officer 的角色涵盖了公共安全的多个方面。你认为现代社会中，警察的工作面临哪些新挑战？