youdao

He faced the enemy valiantly, shuned no difficulties and dangers and would not hesitate to lay down his life if need be.

他英勇对敌，不避艰险，赴汤蹈火在所不计。

《新英汉大辞典》

But fall out of touch, and hunger becomes diet enemy number one: you may eat more than you need or get too hungry and stoke out-of-control cravings.

但是一旦离开感觉，饥饿会变成食物的头号敌人：你可能会吃得比你需要的量多或者有太饥饿并想不受控制地大吃的愿望。

youdao

Furthermore, an enemy need not have long-range missiles.

CENTERFORSECURITYPOLICY: Center For Security Policy

An enemy need not have long-range missiles.

CENTERFORSECURITYPOLICY: Center For Security Policy

And in all we do, I will ensure that our commanders on the ground have the troops and flexibility they need to defeat the enemy.

CNN: Text of President Bush's speech