便衣警察

• plain-clothes man
• plain clothes
• plainclothes police

例句

1. 便衣警察在这位外国首脑进行国事访问期间混入在人群中以防骚乱。
   Policemen in plain clothes intermingled with the crowd to prevent trouble during the foreign ruler's state visit.
2. 有个便衣警察整天秘密监视那个罪犯。
   A policeman in plain clothes shadowed the criminal all day.

近反义词

【近义词】

• 秘密警察