The old Dutch fort with its thick high walls looks virtually impregnable.
该座荷兰老城堡城墙又高又厚，看上去固若金汤。
Over time Nansen came to "laugh at the ice; we are living as it were in an impregnable castle."
随着时间的推移，南森开始“嘲笑冰层”，说“我们就像住在一座坚不可摧的城堡里。”
But as the unexpected bankruptcy of Lehman brothers shows, ultra-safe does not mean impregnable.
但是像意想不到的勒曼兄弟的破产所显示的那样，极端的安全并不意味著牢不可破。
The failure of the eradication programme created a belief, held by many, that malaria was impregnable to any kind of frontal attack.
消灭规划的失败令人产生一种信念，许多人均抱持这种信念，即任何正面攻击都无法击溃疟疾。
The lofty walls of the castle seemed impregnable.
这座城堡的高墙似乎坚不可摧。
The dike that is protected by Mangrove forest is impregnable!
红树林防护的堤坝，固若金汤！
In those impregnable mountains, the guerrillas could hold out for years.
在那些易守难攻的大山里，游击队可以坚持很多年。
Impossible odds. An impregnable fortress. A battle like nothing you've ever seen.
困难重重。一座坚不可摧的堡垒。一场前所未见的战斗。
So he shut himself up in his castle, whose impregnable strength was such as defied a siege.
所以他把自己关在他的城堡里，那城堡盖得牢不可破，经得起围攻。
The Old and New Hangu Passes and Tongguan Pass used to be the three impregnable passes along the ancient Xiaohan Road.
旧函谷关、新函谷关和潼关，是崤函古道上先后兴替的三座雄关。
Despite his belief that the technology is not impregnable, Jones said the application of it in space is a major step forward for the Chinese.
尽管琼斯认为量子技术未必会不可破解，但是他表示，把这项技术运用在太空项目上，这对中国人来说，是向前迈出的重要一步。
As the technical barrier, the knowledge property right is a forceful weapon for collective industrial competition in an impregnable position.
作为技术壁垒的知识产权是产业集群在竞争中立于不败之地的重要因素。
The last scheme for adding security to your machine is the boldest one. You will close the open port making your machine virtually impregnable to any attack.
增强计算机安全性的最后一种方案是最激进的：关闭打开的端口，这会让任何攻击都无法攻破您的计算机。
When fluctuation in input voltages or inconformity of welding materials occurs, the effect of welding is basically impregnable within an appropriate range.
当输入电压有波动或焊接材料不一致的时候，在适当的范围内，焊接效果基本不受影响。
In the contest with other news types, entertainment news must consider the important factor which is news value if it wants to be in an impregnable position.
在与其他新闻类型的角逐中，娱乐新闻要立于不败之地需考虑的重要因素即新闻价值。
Alan Greenspan, uncharacteristically befuddled, went up to Capitol Hill on Thursday and lamented that some sort of fissure had erupted in his previously impregnable worldview.
永远精明的格林斯潘这一次也觉得迷惑，他周四在国会大厦抱怨说，他那些之前看来坚不可摧的世界观也出现了一些裂痕。
Once impregnable, they are now defenceless against the thousands of tourists who swarm here each year to relax on the plethora of beaches and marvel at the imposing fortresses.
这些城堡曾经坚不可摧，如今却对每年来到这里的成千上万的游客敞开了大门。游客们在这里众多的海滩上尽情放松自己，他们对这些宏伟的城堡赞叹不已。
Once impregnable, they are now defenceless against the thousands of tourists who swarm here each year to relax on the plethora of beaches and marvel at the imposing fortresses.
这些城堡曾经坚不可摧，如今却对每年来到这里的成千上万的游客敞开了大门。游客们在这里众多的海滩上尽情放松自己，他们对这些宏伟的城堡赞叹不已。
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