n.叛国(罪);不忠;谋反;背信;
例句:
He swore treason against his friend.
他宣誓对他的朋友犯有叛国罪作证.
They have committed treason state.
他因叛国罪被斩首.
He stood convicted of treason.
他接受叛国罪的宣判.