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.
前臥底警察JackAdleth回到倫敦,搜尋那些企圖在阿姆斯特丹殺害他的人。
an undercover police officer who investigates other policemen.
(非正式)秘密調查其他警察的警官。
Josh: Probably they think I'm an undercover police officer. . .
搞不好他們以為我是便衣警察呢…。