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　　Have you ever imagined a world without trees? Try it, and you will see the whole world dry up and look like a broken tortoise shell. At night, the temperature would drop sharply. Living creatures could not run away and it would be as if they lived in hell. 　

　　There are some effective steps we can take now to protect trees. First, strict laws must be enforced. Second, the government should offer subsidies to people who plant trees. Most important of all, every citizen must develop an awareness of the importance of trees and remember: "no trees means no living things."