随着过路费上涨，在繁忙道路上它将增长明显，足够多的费用就能完全支撑建设新设施的花费。
And as tolls rise, it will be increasingly clear on the busier routes that tolls are high enough to cover the cost of new construction.
福特先生说，随着世界上越来越多人口向大城市迁移，解决交通拥堵问题依靠建设更多道路于事无补，因为没有足够的空间。
As more of the world's population moves into big cities, the answer to traffic congestion won't be building more roads, Mr. Ford says, because there won't be any space.
一个可能的解决办法是建造更多的道路--持续不断地建设新道路直到它们中的其中一条足够通畅以使救护车能顺利通过。
One potential solution is to build more roads—just keep on adding new lanes until one of them is free enough to let the ambulance through.
应用推荐