enemy|enemies

我们的部队进入了敌占区。

Our troops advanced into ___enemy territory.

敌人成功地封锁了我们的补给线。

The ___enemy had successfully blocked our supply lines.

战争期间，我们必须保卫边境免受敌人侵犯。

During the war, we had to defend our borders from the ___enemy.

他们是政治敌人。

They are political ___enemies.

他在这个公司树了一些敌人。

He's made a few ___enemies in this company.

我树了很多敌人。

I have made a lot of ___enemies.

这两个国家是战场上的死敌。

The two nations are sworn ___enemies on the battlefield.