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垒墙

垒墙

...rcumvallation」，约18公里，4米高的垒墙(Vallum)防御工事，修建了约3个星期，为了防御阿莱西亚军的出击，对阿莱西亚城 …

However, at present , the wall was built with adobes , and with the square type, for more, the roof was covered with hays or sheet iron .

Before you build a wall , you 'd ask to know what you were walling in or walling out , and to whom you were like to give offence .

Instead of building walls around ourselves, we should be tearing them down.