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44.Obtaining Fresh water from icebergs The concept of obtaining fresh water from icebergs that are towed to populated areas and arid regions of the world was once treated as a joke more appropriate to cartoons than real life. But now it is being con
The concept of obtaining fresh water from icebergs that are towed to populated areas and arid regions of the world was once treated as a joke more appropriate to cartoons than real life. But now it is
The concept of obtaining fresh water from icebergs that are towed to populated areas and arid regions of the world was once treated as a joke more appropriate to cartoons than real life. But now it is being considered quite seriously by many nations,
After Wednesdays terrible tsunami which killed at least 150 people in Samoa, help is needed. The country needs helicopters to find bodies in the sea and needs people to identify those bodies. Help is needed to care for the injured. The survivors need
When the dam is finished, the water spreads back, and there is a beautiful woodland lake. 水坝建好后,水就会回流,形成一个美丽的森林湖泊。 Many of the trees which were in the valley will now be standing in the water. 从前山谷