duplicitous

她的两面派行为最终让她失去了所有朋友的信任。

Her ___duplicitous actions eventually caused her to lose all her friends' trust.

这个政客对不同的选民群体做出互相矛盾的承诺，显得十分虚伪。

The politician made contradictory promises to different voter groups, showing his ___duplicitous nature.