The water evaporates and the salts are left behind, creating a white crustal layer that prevents air and water from reaching the underlying soil.

水蒸发留下盐分，形成白色的地壳层，阻止空气和水进入下面的土壤。

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In a two-sentence letter Monday, North Korea said it had ordered the release on an "emergency" basis because water levels behind the dam had risen too high.

VOA: standard.2009.09.09

What we are trying to do is champion the policies behind storm water.

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For gamers, writers, developers, and humanity at large, the idea behind Get Water represents another important milestone in the evolution of gaming.

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What you wont see is the wizardry behind the water shows.

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