✔ 最佳答案
It is common to have traffic jams in small cities. Usually I find that there is no passenger in the cars on the road except drivers. That makes me want to invent a mini-car. The mini-car has 4 seats but half of the size of our typical automobile, so it occupies much less parking area and spaces on the road.
This mini-car is powered by rechargeable battery. In typical small cities, it can be used for 5 hours if it is fully charged. Moreover, its top speed of 60km/h makes speeding becomes avoided.
Unlike gasoline powered automobile that pollutes air and harmful to health, this electric-powered mini-car can achieve environmental protection.
Mini-car owner can remove the battery to recharge at home, each car has its unique battery associated with. Even though one has the same mini-car still cannot rob other car owner. It is safe to park on the street.
I often drive the mini-car everywhere to let more people get more chance to see it and know its advantages. I also advertise my mini-car on newspaper and magazine.
I hope my dream can be achieved in the short future!