在未来世界,小型飞机可以随叫随停,就像现在的公共汽车一样。小型飞机设有自动升降的梯子,人们通过梯子上下飞机。飞机里有投币机,也可以刷卡。在飞行的路上不会有红绿灯,更不会发生交通堵塞。小型飞机的速度非常快,想到哪里一会儿就可以到达。随叫随停的飞机@李菁 In the future world, small airplanes can stop on time, just like the current bus. Small aircraft with automatic lift ladder, people through the ladder up and down the plane. There are slot machines in the aircraft, you can also credit card. There will be no traffic lights on the flight path, and no traffic jams will occur. Small aircraft are fast and can be arrived at when you think about it. On-call aircraft @ Li Jing