traitor to one's country, collaborator
只有孩子们和牧师那些卖国贼想要什么?
What do only the children and the priest, those traitors, want?
— 再见，孩子们 (1987)
汉奸、卖国贼！
Traitor! Quisling!
— 色‧戒 (2007)
卖国贼
Traitor to the country
你们现在已经被看作是卖国贼
You are now seen as traitors to your country.
— 风吹麦浪 (2006)