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最佳答案：Do you know how to protect yourself?Some students aren't really sure what to do.
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最佳答案：Our earth has been polluted by a lot, we have to protect our earth. It is our du
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最佳答案：To Protect ForestsThe forests are very important to humans and animals.they can
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最佳答案：With the developing rises live, people directs more and more excessively on envi
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最佳答案：How to protect the earthHow to protect our earth has become one of the biggest p
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最佳答案：These days we often talk about the importance of our natural resources. In many
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最佳答案：How to protect myselfEven we now live in a homoniorous society,as a growing chil
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最佳答案：Everybody knows waste paper and used coke cans are discarded everywhere.You migh
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最佳答案：It Is Important to Protect the EarthAs time goes by,man is making the earth sick
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最佳答案：Today there is more and more pollution and the environment is becoming worse and