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It's our duty to protect our environment. Where do we live? The earth. The earth is the only one place we live in. So you know how important the environment is.
But now, some people are harming the environment, like cutting down trees, drawing pictures on public walls, littering onto the ground. It's terrible if we still do it.
Now, it's time for all the people in the society to protect the environment. It's our duty. It needs each of us to make a contribution to improving the environment. We should make our environment more and more beautiful.
