And it's the same for the roads between cities--because even if you build 20 north-south freeways, the cars won't be able to get off the highway and enter the cities when they get there.
因為當各個都市人口集中，空間擁擠時，即使在其間建廿條南來北往的高速公路，車陣也下不了公路、進不了城。