在古代，传教士们常常试图改变那些被视为异教徒的部落的信仰。

In ancient times, missionaries often tried to convert tribes they considered ___heathens.

在中世纪，十字军东征时常常将异教徒视为敌人。

During the Middle Ages, crusaders often saw ___heathens as their enemies.

我爷爷总把摇滚乐迷称为异教徒。

My grandpa always calls rock music fans ___heathens.