n.叛徒，变节者，叛逆

原形：turncoat复数：turncoats

John was a turncoat who betrayed his team by joining the rival company.
约翰是一个背信弃义的人，他背叛了他的团队加入了竞争对手公司。
The politician's sudden support for the opposition was a clear case of political turncoat.
那位政客突然转向支持反对党，显然是政治上的叛徒行为。
After years of loyalty, he became a turncoat and switched sides in the debate.
经过多年的忠诚后，他成了一个变节者，在辩论中转而支持对立面。
The football player's turncoat move to the rival team left fans feeling betrayed.
足球运动员转会到竞争对手球队的行为让球迷感到被出卖了。
In a game of chess, a turncoat pawn could be promoted to a queen if it reaches the opposite end of the board.
在国际象棋中，如果兵走到棋盘的对面，它就可以晋升为皇后，这叫作"叛逃兵"。
The company's CEO turned out to be a turncoat, selling off valuable assets to competitors.
公司的CEO原来是个叛徒，把有价值的资产卖给了竞争对手。
The turncoat spy was finally caught after providing crucial information to the enemy.
这个叛徒间谍在向敌人提供重要情报后终于被抓住了。
The once-loyal employee became a turncoat when they quit and started sharing trade secrets with a competitor.
曾经忠诚的员工辞职后成了叛徒，开始向竞争对手泄露商业机密。
In politics, a turncoat is someone who changes their party affiliation or political stance.
在政治上，叛徒指的是改变党派归属或政治立场的人。
His brother's sudden change of heart from supporting the project to opposing it made him a political turncoat.
他哥哥从支持项目变为反对，这种态度转变使他在政治立场上成了叛徒。