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The county boundaries have been marked in with a fine mapping pen.
县界用细绘图笔加画在地图上了。
youdao
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Similarly, state and county boundaries can be represented with polygons.
类似地，州和国家边界可以用多边形表示。
youdao
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Similarly, state and county boundaries can be represented with polygons.
类似地，州和国家边界可以用多边形表示。
youdao