traitor;renegade;turncoat;rebel;Judas ;

They are traitors who have committed towering crimes and deserve more than death.
他们是罪大恶极,死有余辜的叛徒.
来源:《现代汉英综合大词典》When he was doing underground work he was arrested because a renegade informed against him.
他做地下工作时,曾因叛徒告密而被捕.
来源:《现代汉英综合大词典》简答网 · 双语娱乐资讯

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