要塞区(fortress command)是在海防要地设立的军队组织。一般辖有守备部队、分队。防区筑有永备工事，配备较强火力，储备充足物资，形成独立的防御体系。
旧金山要塞区麻雀的鸣叫声实际上比它们以往任何时候的叫声都要更高——这样人们才能在驶过附近金门大桥的汽车隆隆声中听到它们的鸣叫。
Sparrows living in San Francisco's Presidio district actually tweet their tunes in a higher register than they did in the past, to be heard over the rumble of cars on the nearby Golden Gate Bridge.
新疆维吾尔自治区，定位在欧亚大陆的腹地，趴在中国的西北部，是丝绸之路的最关键的要塞。
Xinjiang Uigur Autonomous Region, locating in the hinterland of the Eurasia and lying in the northwestern part of China, is the most significant route way of the Silk Road.
位于东莞市万江新和夏塘工业区，地处广深公路要塞地段，毗邻货运港口，水陆交通十分方便。
SHENGFENG lies speedway fortress between the GuanZhou and the ShenZhen, again the adjacent freight transportation port, land-and -water transportation is very convenient.
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