...ill-adapted land use; desertification and water; the interaction of animal , vegetable and horticultural species; international trade and the movements of peoples are all destabilizing factors that are now upon us and very real 现在已有居民逾 ‧ 亿的地球的人口继续增长、化学和工业污染、土地利用不当、荒漠化与水、 动物 植物和人工种植品种的相互作用、国际贸易及人口流...
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