be a treasonist
He was accused of being a treasonist.
他被指控是叛国者。
叛国者
someone who betrays his country by committing treason
The general was accused of being a treasonist after he secretly negotiated with the enemy.
那位将军因暗中与敌人谈判而被指控为叛国者。
用法提示：名词“叛国者”在句中作为表语，指被指控背叛国家的人。
The court sentenced the treasonist to life imprisonment for his role in the conspiracy.
法院因该叛国者在阴谋中的作用判处其终身监禁。
用法提示：名词“叛国者”在句中作宾语，指因叛国行为被判刑的人。
Historians debate whether he was a patriot or a treasonist.
历史学家们争论他究竟是爱国者还是叛国者。
用法提示：名词“叛国者”在句中作为名词性表语，与“爱国者”形成对比。
He was accused of being a treasonist.
他被指控是叛国者。
The government accused him of being a treasonist.
政府指控他是叛国者。
The media branded the former official a treasonist.
媒体给这位前官员打上了叛国者的标签。
用于后置定语从句
A treasonist who sells state secrets will face severe punishment.
出卖国家机密的叛国者将面临严惩。
grammar · medium
易错句子He treasonisted his country by selling secrets.
正确表达He committed treason against his country by selling secrets.
“treasonist” 是名词，不能用作动词。正确的动词短语是 “commit treason” 或 “betray”.
grammar · medium
易错句子He is a treasonist because he broke his promise to his friend.
正确表达He is a traitor because he broke his promise to his friend.
“treasonist” 特指背叛国家的人，而一般性的背信弃义应用 “traitor”.
Traitor 泛指背叛任何对象（朋友、组织、国家等），而 treasonist 特指背叛国家。
Turncoat 强调因个人利益改变立场，不一定涉及法律定义的叛国行为，而 treasonist 指犯有叛国罪的人。
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