adj.口是心非的，奸诈的;骗人的;两面派的

His duplicitous behavior led to the breakdown of trust within the team.
他那两面三刀的行为导致团队内部的信任崩溃。
The politician's duplicitous statements were exposed by the press, damaging his reputation.
政客那些表里不一的言论被媒体揭露，损害了他的声誉。
She discovered that her friend's seemingly kind gestures were actually duplicitous attempts to gain her confidence.
她发现朋友那些看似友善的举动实际上是为赢得她信任的虚伪企图。
The spy's duplicitous nature allowed him to infiltrate the enemy's ranks without raising suspicion.
间谍那两面派的本性使他能在不引起怀疑的情况下潜入敌人内部。
It's duplicitous to claim you support a cause publicly but then work against it behind the scenes.
公开声称支持某项事业，私下却在暗中破坏，这是典型的两面三刀。
His duplicitous promises of loyalty ultimately cost him the support of his closest allies.
他对忠诚的虚伪承诺最终让他失去了最亲密盟友的支持。
The duplicitous salesperson assured me the car was in mint condition, but it turned out to be a lemon.
那位两面派的销售人员向我保证车况极佳，结果却是一辆问题多多的次品。
Her duplicitous behavior in the workplace, pretending to help while sabotaging others' projects, earned her many enemies.
她在工作场所的两面派行为——假装帮忙实则破坏他人项目，为她树敌无数。
The duplicitous nature of the character he played in the movie made him a fan favorite for his complex portrayal.
他在电影中扮演的角色具有两面性，这种复杂的表现让他成为了粉丝的最爱。
Don't fall for his duplicitous charm; he has a history of manipulating people for personal gain.
不要被他那虚伪的魅力所迷惑；他有为了个人利益操纵别人的前科。