undercover police officer
美 英
例句
Former undercover police officer Jack Adleth returns to London seeking those who tried to have him killed in Amsterdam.
前卧底警察JackAdleth回到伦敦,搜寻那些企图在阿姆斯特丹杀害他的人。
an undercover police officer who investigates other policemen.
(非正式)秘密调查其他警察的警官。
Josh: Probably they think I'm an undercover police officer. . .
搞不好他们以为我是便衣警察呢…。