With the fast development of human society and the improvement of life standard, private car has become more and more common in our country, especially in cities.It brings some benefit for us but also causes many problems at the same time.

　　随着人类社会的快速发展和生活水平的提高，私家车在我国越来越普遍，特别是在城市。私家车给我们带来很多好处，但同时也引起很多问题。