Instead of making a clean break, water evaporating from treetops tugs on the remaining water molecules, with that tug extending from molecule to molecule all the way down to the roots.

从树梢蒸发的水并没有彻底地分解，而是拉住了剩下的水分子，这种拉拽作用从一个分子延伸到另一个分子，一直拉到根部。

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The towers will stick out of the water and be lit, to warn shipping, and also be designed to be lifted out of the water for maintenance and to clean seaweed from the blades.

这些塔会升出水面并且亮灯，用以警示船只避让，同时也能够完全升到水面以上，以方便维修螺旋桨和清理叶片上的水草。

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They may have access to drinking water but not clean, safe drinking water.

他们或许能获得饮用水，但不是干净、安全的饮用水。

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The government could also use violations of other federal laws such as the Clean Water Act to collect money for the spill.

VOA: special.2010.06.04

They hope that future synthetic cells can make useful bacteria for products like bio-fuels or vaccines, and to clean up polluted water.

VOA: special.2010.07.20

People across the state will work together on one hundred twenty-five local projects to clean trash, remove invasive plants and improve water areas.

VOA: special.2010.04.21

Paget says Belu -- derived from the word blue and the Italian word for beautiful, "bella" -- takes a three-pronged approach to its clean water projects, by not only providing a clean water source for drinking but water for washing hands and education about the importance of hygiene.

CNN: Eco-friendly bottle for ethical water

Grit can get trapped in the mushrooms' nooks and crannies, so give them a swish in a bowl of cold water, then repeat with fresh water until the water runs clean and let them air dry in a single layer on kitchen towels.

WSJ: Stuffed Morels | Consider This

Governors and officials from eight Great Lakes states will join their counterparts from Ontario and Quebec to approve today what some call the most significant water loss since the Clean Water Act.

NPR: Governors Meet on Access to Great Lakes