What keeps this vast system clean is a web of earth, plants and animals; when water cannot be in touch with these it is no longer a sustainable and healthy system.

而能保持这一庞大水系统洁净的则是由泥土、植物、动物组成的网络。当水不接触它们时，这个系统就不能再保持正常了。

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From icy comets to Earth's vast oceans, our solar system is chock full of water, yet so far no one has been able to demonstrate how it formed in the first place.

从冰冷的彗星，到地球浩瀚的海洋，我们的太阳系充满了水，但到目前为止，还没人证明它最初是如何形成的。

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In IBM's water-cooling system, the processors and several other parts in the computer are cooled with water that is no warmer than 140 degrees Fahrenheit.

应用ibm的水冷却系统，计算机处理器和其他部件被冷却不会超过华氏140度。

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Although the water supply in this area was reasonable enough, there was no system for collecting sewage, so it gathered in the streets, causing obnoxious smells and diseases.

ECONOMIST: Clean up��or risk many deaths

Pointless, tedious waiting in a crowded cage with dead roaches and no running water, where officers processing you through the system laugh at your discomfort and fear.

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