Today’s morning I got up so early, and then I went to park with my son. On the way my son threw a small plastic bag on the road. I ordered him to pick it up. “There have no garbage cans on road side. Where should I throw it?” my son said. “You should put it in your bag until you meet a garbage can.” I answered. “Why there has no garbage can?” my son said. I did not know how to response. My son said is right. The department of environment management should put the common garbage can along the road properly. Our government encourages preventing the environment around us. At same time he should provide the suitable assistant establishment especially in the small city. In some small city of China, compare with the big city the common establishment is opposite simple. Even some cities just have a few of garbage cans. Eventually I wish the department would pay more attention on this side.