plainclothesman

• 名词，指不穿制服、身着便衣执行任务的警察，通常为侦探或警探。

A noun referring to a police officer, typically a detective, who wears ordinary civilian clothing instead of a uniform while on duty.

不规则复数

1. Undercover police officerB2formal

   A law enforcement officer who wears ordinary civilian clothes instead of a uniform while on duty, typically to conduct surveillance or investigations.

   便衣警察

   • The plainclothesman followed the suspect through the crowded market.
   • A plainclothesman was stationed outside the bank to observe suspicious activity.
   • The witness was interviewed by a plainclothesman from the detective bureau.

   同义词detectiveinvestigator