他开玩笑地称他最好的朋友为"左脚球员"，因为对方是天主教徒。

He jokingly calls his best friend a ___left-footer because he's Catholic.

作为一名左撇子，他是班上唯一用左手写字的人。

As the only ___left-footer in the class, he writes with his left hand.