whatever I was born in Shijiazhuang, it is a pity which is known by others of air pollution now, just like the ancient London. Because during the economic development, people didn't pay attation on the envoirnment. They just want plant more crop, find more metal, and build more factories. Now they realise the importance of protecting envoirnment but it is too late. Recovering need far more time than destorying. Now I work in Shenzhen, a beautiful city located in south China, but I still want to go back to Shijiazhuang, my parents and many friends are there. I miss them very much.