There, they keep other creatures in check, distribute seeds, and clean dead and decaying materials from the ground.

在那里，他们控制其他生物的数量，将植物种子带往各地，清除地面上衰败和腐烂的物质。

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By tackling the issue now it could regain the high moral ground (at the same time as forging ahead in the clean-energy business, which Europe might otherwise dominate).

把眼下这个问题解决好了，美国就能重新树立自己的道义形象(与此同时，还能在清洁能源业中迎头赶上，避免欧洲占去先机)。

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This staff member who doesn't want to publish his name says grass from the golf course needs clean water, so the company introduced ground water to irrigate.

这位不愿透露姓名的职员称，高尔夫球场的草地需要清洁的水，所以公司引入地下水来灌溉。

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Surrounded by red limestone cliffs, the water comes from the ground and is so clean you can drink it.

CNN: Oasis from the ruins: Afghanistan opens first national park

On the ground they strip carrion clean.

BBC: Patagonia��s historic cowboy ranches

By tackling the issue now it could regain the high moral ground (at the same time as forging ahead in the clean-energy business, which Europe might otherwise dominate).

ECONOMIST: Climate change