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電子課本網(wǎng) › 第100頁

第100頁

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To protect the Earth, we should save and reuse water. We should save energy. We

should save trees and plant more trees. We should use paper bags. To protect the Earth,

we should not waste water. We should not drive so much because cars use a lot of

energy. We should not cut down too many trees. We should not use too much plastic.