noun 下载 🔗分享 线人,超级告密者 An informer providing substantial quantities of information on criminal or terrorist activities to the police. Examples : "The police investigation gained momentum when a former gang member turned supergrass, providing crucial details about the drug operation. " 警方在一名曾经的黑帮成员转变为线人后,调查取得了进展,这名线人提供了关于毒品行动的关键细节。 police law government 与AI对话词汇游戏阅读练习