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831 篇文章
the saguaros bloom at night to attract visitors.
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the saguaros bloom at night to attract visitors. 弁庆柱在晚上开花 吸引了不少拜访者

At the same time wind blowing on to the shore sweeps the fog inland.
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At the same time wind blowing on to the shore sweeps the fog inland. 与此同时 吹向海岸的风将雾气带上陆地

They're very good at conserving moisture
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They're very good at conserving moisture 它们非常善于保存水分

But moisture, lost even at night, has to be replaced sometime somehow
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But moisture, lost even at night, has to be replaced sometime somehow 可是水分在晚上也会损耗 必须在什么时候想办法补充

and only emerge at sunset.
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and only emerge at sunset. 直到日落之后才会出现

to get at the cooler ground beneath.
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to get at the cooler ground beneath. 贴近下面较冷的地面

a camel at a waterhole can drink as much as 200 litres during a single visit.
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a camel at a waterhole can drink as much as 200 litres during a single visit. 一只骆驼找到水坑后 能一次喝下200升水

no-one guessed at the sheer size of this cave.
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no-one guessed at the sheer size of this cave. 没有一个人能预料到它竟然有这么大

It's astonishing that these extraordinary cave dwellers manage to survive at all.
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It's astonishing that these extraordinary cave dwellers manage to survive at all. 这些奇异的洞栖生物能如此成功地生存 的确令人称奇

and this gives them something to aim at.
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and this gives them something to aim at. 这也给了它们瞄准目标的机会