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It will stop the sand from moving towards the rich farmland in the south. It has already saved a lot of land. But more ''Great Green Walls''are still needed ,and not only in China. They must be built all over the world.
Wang Feng is aworker at Yulin in shaanxi.he works on the Great Green Wall with many other people.We visited him at his workplace among the young trees and asked him about hiswork.
So we grow our own food, too. But we are growing alot more now, thank to the Green Wall.
翻译!!谢谢!!
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