How did those dense southern Maya populations deal with the resulting water problem?

玛雅南部人口这么秘籍，他们是如何应对由此产生的水问题的？

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Israel argues that the water problem should be solved by finding new sources, through desalination and water treatment.

以色列主张，应该通过海水淡化和水处理的途径找到新水源来解决水问题。

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Israel wastes only about a tenth of its water, and if everyone were equally efficient, the world's water problem would be much less pressing.

以色列灌溉只浪费约十分之一的水，如果每个国家都同样高效用水的话，世界水问题压力将大大减少。

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Galmudug regional government Minister of Planning Omar Mohamud warns that not implementing a long-term solution to the water problem will fuel the vicious cycle of droughts, hunger,and violence and keep the Somali people in the iron grip of poverty.

VOA: standard.2009.10.06

There can be a supply of them, a storehouse of them that can build up in the body, and so day-to-day fluctuations become less of a problem with fat soluble then water soluble vitamins, because the body can go grab them from a storage depot, if you will.

从而在体内建立起一个供应源,一个脂溶性维生素仓库,这样一来,相比起水溶性维生素,脂溶性维生素的浓度不会每天剧烈波动,因为机体可以任意取用体内的储存

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

The fascinating part about this layer is that it solves the problem for phospholipids about how to exist in water when half of you wants to be in oil, and that the water soluble part of the top leaflet here, of the top points up into the water, and the fatty acid chains point down.

这层膜的迷人之处在于,它解决了磷脂,如何存在于水中和油脂中的问题,水溶性的顶端部分,向上插入水中,而脂肪链则指向下

耶鲁公开课 - 生物医学工程探索课程节选

"The water problem all over the world is because of a population problem, " he said.

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Two exciting solutions to the water problem are already working and ready to scale.

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Might a clever candidate champion a solution to the water problem?

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