Swell the populations of the world's cities. 涌入各大城市
Half the world's poor live in resource-rich countries. 世上一半的穷♥人♥居于资源丰富的国家
Since 1950, the world's population has almost tripled. 自1950年以来 世界人口几乎翻了三倍
In haiti, one ofthe world's poorest countries, 在海地 世界上最穷的国家之一
Almost a third ofthe world's population 接近世界人口的三分一
The world's largest rain forest, the amazon, 世上最大的热带雨林亚马逊
The world's magic is right in front of our eyes. 世界的神奇就在我们眼前
In the last century, half of the world's marshes were drained. 上世纪内 地球一半沼泽消失殆尽
500 million humans live in the world's desert lands, 5亿人生活在沙漠地区