traitor
noun [ C ] disapproving uk/ˈtreɪ.tər/ us/ˈtreɪ.t̬ɚ/
背叛者，叛徒;卖国贼
a person who is not loyal or stops being loyal to their own country, social class, beliefs, etc.
The leaders of the rebellion were hanged as traitors. 叛乱的首领被作为叛国者绞死了。
The Chinese Communist Party branded (= called) Mr Gorbachev "a traitor to socialism". 中国共产党称戈尔巴乔夫先生为“社会主义的叛徒”。
Synonyms: Judasbackstabberbetrayer (NOT LOYAL)