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When I was very young ,the sky in my hometown was nice and beautiful, the sky was very blue,and the air was fresh.

There were some birds singing ,and there were many trees in the fields. I often played with my friends in the open air.I liked it.

Now the people are rich ,but the sky in my homerown isn't blue .the trees were cut down , and there aren't many birds. And the air isn't fresher than before.

The rubbish is put here and there, it was bad for our health.So wo must do something to protect the environment.

If we make a contribution to protecting the environment,the sky will become much more beautiful.