the battle took place over some land that was being contested on a frontier and they would go down to that area and pick a spot and there they would go and fight with one another.
战争爆发是为了争夺国境线上的争议地区,他们会到那个地区,挑好地方,然后在那里大打出手
But when that's not true, then there is a typical sort of modern frontier, a land bridge which there a line is-a theoretical line is drawn through it, and on one side is one city, and the other side is another city.
但还不止这些天然边界,另外还有种边界形式,和现代国境线很类似,是由一座陆桥,分割出一条界线…假象的界线,界线的一边是一个城邦,另一边是另一个城邦
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