n general, there are two way of traveling, private cars and public Chinese people should regard public transportation as their first traveling First, there are so many people living in this countries that make it so If each chinese people own a car, there will be far more traffic jams and accidents, which increase you Moreover, there will be far more pollution resulted from Once a car started, it release huge amount of dirty gas and heat, which lead to great pollution and result in green house All in all, chinese people should take public transpotation into consideration 这个是比较简单的,网上可以找到更多的啦。