I am a girl of ten in a primary school. I live near a small river. It was a beautiful river several years ago, and we could see fish in it. But now things have changed. I find some people pouring waste into the river every day. I have told them again and again not to do so, but they don't listen to me, maybe because I'm just a little girl. I think we should think out some ways to stop polluting the river, and call on people to fight against pollution.