Background: Deep in the bowels of Cheyenne Mountain is a city-like military complex that once served as North American Aerospace Defense Command (NORAD) 's center.
背景材料：在夏延山的深处像一座城市一样的军事综合隧道，一度作为北美防空司令部(NORAD)的中心。
The defense wall and the deep and wide ditch surround the whole complex, not as part of a military fortification rather as a form of restricted ceremonial isolation.
防护墙和既深又宽的水渠环绕着整个建筑群，它们并不是军事防护工事的一部分，而只是一种仪式上的限制隔离。
Just like the Great Wall, the Xi 'an City Wall was originally built for defense, with watchtowers and even a deep moat and drawbridges.
和长城一样，西安古城最开始建造是用于防御，不仅有瞭望塔，甚至还有很深的护城河及吊桥。
Meanwhile, his replacement is an aircraft engineer and 30-year Boeing veteran with a deep knowledge of the defense industry's inner workings.
而麦伦堡则是一位专业的飞机工程师，已经在波音效力了30年之久，深谙军用飞机行业的内部运作。
But in real life, there has a similar case which has not been carried out at self-defense system, it has been a deep violation of criminal suspects rights.
而现实生活中，也有相关的案件不是按正当防卫制度来进行审判的，深深的侵犯了犯被害人的各项权利。
If the findings of psychoanalytic investigation of feelings have any validity, feelings of boredom arise as a defense against deep feelings of anxiety.
如果在情感方面的心理研究成果仍然有效，厌倦感是深藏的焦虑心情引起的防御反应。
If the findings of psychoanalytic investigation of feelings have any validity, feelings of boredom arise as a defense against deep feelings of anxiety.
如果在情感方面的心理研究成果仍然有效，厌倦感是深藏的焦虑心情引起的防御反应。
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