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1.远古时期,世界上是没有道路的。人类为了生存,经常到处迁徙,终于在大地上踩出了能够供人们行走的土路。这就是最初道路的雏形。
In ancient times, there was no way in the world. In order to survive, human beings often migrate around and finally step on the earth with dirt roads that people can walk on. This is the prototype of the initial road.