An impregnable castle in the center of Europe.

成为了欧洲中心坚不可摧的城堡。

The heights of Kennesaw were impregnable.

肯尼萨山的高地是坚不可摧的。

The sheer cliffs on three sides and the steep summit made the citadel virtually impregnable.

三面陡峭悬崖外加高耸的山顶让这座堡垒坚不可摧。

It's a stunning example of architectural engineering at altitude, and completely impregnable.

一座非常优秀的高地工事可谓坚不可摧。

There were no security guards present because they trusted the false technological defenses were impregnable.

没有保安在场，因为他们相信虚假的技术防御坚不可摧。

The tippler brought his speech to an end, and shut himself up in an impregnable silence.

酒鬼说完以后就无论如何都不再开口了。

" If Storm's End is so impregnable, how do you mean to take it" ? asked Malo.

" 风息堡难攻不破，你又怎生奈何它？" 莫罗问。

Are these businesses really so impregnable and indestructible?

这些企业真的那么坚不可摧吗？

Fort Knox was built to be an impregnable fortress.

诺克斯堡被建造成一座坚不可摧的堡垒。

The bullion depository at Fort Knox was built to be an " impregnable fortress."

诺克斯堡的金银存放处被建造成一座“坚不可摧的堡垒” 。