Reuben ran down Water Street.

鲁本沿着沃特街跑着。

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Increased UV light may break down water molecules in the upper atmosphere, reducing cloud formation, says James Russell of Hampton University in Virginia, who was not involved in the study.

美国维吉尼亚州汉普顿大学的詹姆斯·拉塞尔没有参与这次研究，他说，增加的紫外光可能会分解高层大气中的水分子。

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The device, reported in the journal Science, uses a standard parabolic mirror to focus the sun's rays into a reaction chamber where the cerium oxide catalyst breaks down water and carbon dioxide.

这种在《科学》杂志里所报道的装置使用一个标准的抛物柱面镜把阳光搜集进一个反应室。在这个反应室里，铈氧化物催化剂可以分解水和二氧化碳。

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Here they can see Waimoku Falls where water drops one hundred twenty meters down the face of a mountain.

VOA: special.2010.09.08

If we take hydrogen peroxide in the liquid state, it can break down to form water and oxygen.

如果我们有一些液态的过氧化氢，它会分解成水和氧气。

麻省理工公开课 - 热力学与动力学课程节选

If I get you down to a cluster of about 30 water molecules, the boiling point is a function of the size of the water droplet.

如果对于一个由30个水分子,组成的簇，沸点是,水珠尺寸的函数。

麻省理工公开课 - 固态化学导论课程节选

"You don't ruin expensive landscaping to put down water-hogging grass so your kids can play on a busy street, " I answer.

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The rains came up from India, washing the Himalayas, filling the rivers of the Punjab, pouring down water on the Hindu Kush and on the plain that extends from the Khyber to Karachi.

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He reasoned that by adding the least reactive ingredients of his potion first and by using broken-down water molecules instead of intact H2O, he could prevent the premature gelling that had plagued his peers.

FORBES: The Science of Small