偶數的是東西向州際公路，它們從南到北近乎平行排列，兩條東西向主要州際公路一定是一南一北近乎平行排列

來源: archkey 於 2023-08-30 15:38:22 [舊帖] [給我悄悄話] 本文已被閱讀：次

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