The vehicles sharp growth, has brought some troubles to the people.For instance, the automobile consumes the massive fuels, the oil resource is reducing day by day, the air pollution more and more is also serious; The automobile trumpet lets the human unendurable; When arrives the coming and going t

Vehicles increased dramatically, to bring some trouble. For example, the car consumes large quantities of fuel, dwindling oil resources, air pollution, and growing; car horn unbearable; one to work or holidays, the traffic jam will be very serious, but also into the parking the problem; traffic incr