Twelve enemy fighters had been brought down.

有十二架敌方的战斗机被击落。

《牛津词典》

This lays down that once a soldier is wounded he and everyone else who comes to his help ceases to be an enemy.

这就说明，一旦一个士兵受伤了，他与其他来帮助他的人就不再是敌人了。

youdao

youdao

Bring the enemy down to zero life while keeping your own total above zero.

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And the two lead men were hit by enemy fire and knocked down instantly.

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