He will direct the blows of his battering rams against your walls and demolish your towers with his weapons.

他必安设撞城锤攻破你的墙垣，用铁器拆毁你的城楼。

But the whales could focus that sonar into a much tighter beam and use it like a battering ram against potential prey and potential predators.

不过鲸能够把声纳密集成一束把它当做攻城槌对付潜在猎物和潜在掠食者。