antagonist

n. 敌手,对手

A sparrow fluttering about the church is an antagonist which the most profound theologian in Europe is wholly unable to overcome.

在教堂附近飞来飞去的麻雀，是为欧洲学识最深的神学家们完全无法克服的敌手。

I am bound to furnish my antagonists with arguments, but not with comprehension.

我一定要向对手提供争论点，但并无予以理解的必要。