Now, the world becomes more pollution. The experts from all over the world are researching about this. But not only the expert can help the world become better. We also can do so. No need to do anything big, we should clean up where we're at, the streets around us. I'm going to encourage everyone to clean their houses. And I will encourage them not to throw litter in public places. Although it is only the small action but it would help the world better
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