impregnable
「impregnable」的意思
adj. （要塞）坚固的，无法攻取的；不受影响的，难以改变的；可受孕的，可生育的
adj.无法攻取的,要塞坚固的,不受影响的,可以受孕的的
「impregnable」的用法
impregnable不可攻破的，固若金汤的 - 形容某个地方或事物非常坚固，难以被攻破或破坏。
「impregnable」的例句
The fortress was impregnable.
那座城堡固若金汤。
The castle's walls were impregnable.
城堡的城墙固若金汤。
The enemy could not breach the impregnable fort.
敌人无法攻破那座固若金汤的堡垒。
The castle's defenses were impregnable.
城堡的防御固若金汤。
The fort was impregnable to the invaders.
那座堡垒对入侵者来说是固若金汤。
The castle's gates were impregnable to the storm.
城堡的大门在暴风雨中固若金汤。
The city's walls were impregnable to the attackers.
城市的城墙对攻击者来说是固若金汤。
The fortress's defenses were impregnable to the assault.
那座堡垒的防御对进攻者来说是固若金汤。
The castle's defenses were impregnable to the siege.
城堡的防御对围攻者来说是固若金汤。
The fort was impregnable to the bombardment.
那座堡垒对炮击来说是固若金汤。