our nature is always fresh, clean, and gives us a cool, comfortable atmosphere.But ever since the appearance of tall buildings, factories and buildings, smog has appeared.The climate is heavily polluted.factories emit dust and pollute the environment.People are no longer as conscious as they used to, littering indiscriminately makes the environment more dirty.There are always a lot of trash gathering around.sometimes in the middle of the road, jeopardizing traffic safety.Let's join hands to protect the beautiful, more civilized environment
