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联合国环境保护署最近的调查表明,全球35％的陆地面积已成为沙漠和沙漠化土地,这意味着1/3的陆地面积已经失去或基本失去人类生存的良好条件。我国
A recent survey by the Environmental Protection Agency of the United Nations shows that 35% of the world’s land area has become desert and desertification land, which means that 1/3 of the land area has lost or basically lost favorable conditions for human survival. My country