我住的城市以前很。
The city I live in used to have very clean air.
可是这几年，车越来越多，也变差了。
But in recent years, there have been more and more cars, and the air has gotten worse.
很多人开始注意的问题。
Many people have started to pay attention to the problem of pollution.
为了保护，我决定少开车，多骑。
To protect the environment, I decided to drive less and ride my bike more.
我还在家旁边了几棵树和很多花。
I also planted a few trees and many flowers next to my house.
周末的时候，我和一起打扫公园。
On weekends, I clean up the park together with my neighbors.
我们，让公园变得更。
We reduce the trash, making the park cleaner.
我，只要大家一起努力，一定会变好。
I believe that as long as everyone works together, the air will surely get better.