in·form·er
noun/ɪnˈfɔːmə(r)/
/ɪnˈfɔːrmər/
- a person who gives information to the police or other authority
（向警方或其他当局）提供消息的线人 - The bomber turned (= became) police informer to escape prison.
炸弹袭击者为了越狱而变成（=成为）警方线人。 - One of the gang members had turned informer.
一个团伙成员后来变成了告密者。
Oxford Collocations Dictionaryadjective- police
- become
- turn
- a network of informers
- The bomber turned (= became) police informer to escape prison.