请就目前能源供求紧张的情况谈一谈自己的看法： Americans like to go out by car. Although more and more Chinese own cars,most Chinese still like to ride bicycles, This is determined by a lot of factors. As we all know, the bike advances slowly by manpower, but it can be placed wherever it is convenient However, as for the car, although it can run fast by engine, it must be parked