The castle walls were impregnable during the medieval siege.
在中世纪围攻期间，城堡的墙壁坚不可摧。
The fortress was built to be impregnable against any attack.
这座堡垒是为了抵御任何攻击而建造得固若金汤。
Their defense strategy proved to be impregnable in the battle.
他们的防御策略在战斗中被证明坚不可摧。
The ancient city had impregnable fortifications surrounding it.
这座古城有牢不可破的防御工事围绕着。
Her argument was impregnable, leaving no room for doubt.
她的论点无懈可击，没有留下任何疑问的余地。
The bank's security system is nearly impregnable to hackers.
银行的安全系统对黑客来说几乎无法攻破。
The mountain range formed an impregnable natural barrier.
山脉形成了一个不可逾越的天然屏障。
The leader's will was impregnable in the face of adversity.
领导者的意志在逆境中坚定不移。
The team created an impregnable defense on the field.
球队在场上创造了无懈可击的防守。
Their friendship was impregnable, enduring all challenges.
他们的友谊牢不可破，经受住了所有挑战。
an impregnable fortress
坚不可摧的堡垒
an impregnable defense
牢不可破的防御
an impregnable argument
无懈可击的论点
an impregnable position
固若金汤的阵地
an impregnable mindset
不可动摇的心态
an impregnable wall
无法攻破的墙
an impregnable reputation
不可动摇的声誉
