" The enemy within, " As they were perceived.

" 家贼难防" 他们是这样看待爱尔兰的。

But they have yielded to the only enemy that matters—the enemy within.

但他们屈服于唯一重要的敌人——内部的敌人。

The enemy within and among our separate ethnic selves is as daunting as any foreign foe.

我们不同种族内部和之间的敌人与任何外国敌人一样令人生畏。

And both were looking at the idea of orbiting platforms from which to launch nuclear weapons: you could lob bombs on the enemy within minutes, instead of needing the better part of an hour using ballistic missiles.

你可以在几分钟内就向敌人发射炸弹，而不是用弹道导弹花一个多小时的时间。