偶数的是东西向州际公路，它们从南到北近乎平行排列，两条东西向主要州际公路一定是一南一北近乎平行排列

来源: archkey 于 2023-08-30 15:38:22 [旧帖] [给我悄悄话] 本文已被阅读：次

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