Many changes have taken place in Changzhou over the years. In the past, there was a blue sky with white clouds. The lakes were clean and beautiful. The buildings were low and old. So it was difficult for people to travel around. People lived a poor life.
Now the situation has changed a lot. It's easy for people to travel around by underground. Most families have their own cars. People's life has improved a lot. However, there is more air and water pollution. As a result, the environment is getting worse.
In my opinion, we should pay more attention to protecting the environment. Actions must be taken to prevent some factories from polluting the river. I hope we will live a better life in the future.
