It needs water, sunshine and good temperature.

它需要水，阳光和良好的温度。

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All we know about life is that it must be made of amino acids, DNA, and it needs water to survive.

我们了解的生命是由氨基酸和DNA组成的，它必须在有水的环境下才能存活。

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The interesting thing is that on Earth at least it needs highly acidic water to form.

有趣的是，至少在地球上它需要强酸性的水来形成。

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It says it needs more money to bring better water to more people.

VOA: standard.2010.08.04

The United States has already pledged But the United Nations says it needs no less that $543 million to provide shelter,food, water and medical care for those affected by the war.

VOA: standard.2009.06.03

All life as we know it on Earth trades off a source of complex carbon molecules, such as amino acids - just as it needs water and energy.

BBC: Gale Crater: Geological 'sweet shop' awaits Mars rover

Assuming that some form of Greek government emerges out of the political discussions now under way in Athens, it is now almost certain that Greece will get the official money it needs to stay above water a few more weeks, notably the next tranche of last year's EU-IMF bailout.

BBC: More time to argue about Greece

Arizona's actions are politic rather than generous: it needs a market to justify storing water it cannot use.

ECONOMIST: Water in the West: Buying a gulp of the Colorado | The