apostate

The apostate member was expelled from the political party for supporting the opposition.

用法提示：形容词 apostate 修饰 member，表示该成员背弃了原有政党。

The apostate priest publicly renounced his faith and left the church.

用法提示：形容词 apostate 修饰 priest，说明该牧师背弃了宗教信仰。

Once a passionate environmentalist, she became an apostate activist after accepting funding from a polluting corporation.

用法提示：形容词 apostate 修饰 activists，表示该 activista 背弃了环保事业。