The fort cannot be defended against an air attack.
这座要塞遭到空袭时无法防御。
The fort cannot be defended against an air attack.
这座要塞遭到空袭时无法防御。
North American Aerospace Defense Command (NORAD) - a binational command involving the United States and Canada which provides warning of missile and air attack against both of its member...
北美航空防御指挥部-美国和加拿大的合指挥部,提供导弹发射和空袭的警报,保卫北美领空,并提供空中防御。
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