1297 篇文章
They provide the only food and water to sustain the family.
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They provide the only food and water to sustain the family. 嫩叶提供了这个家庭唯一的食物和水

Never have those wildernesses been as fragile and as precious as they are today.
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Never have those wildernesses been as fragile and as precious as they are today. 大自然从未像现在一样 脆弱而又珍贵

They take many tons of water into their ballooning throats in a single gulp and sieve out what it contains.
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They take many tons of water into their ballooning throats in a single gulp and sieve out what it contains. 它们一口可吃进几吨的海水 然后再过滤出想要的东西

Despite their great size, we still have little idea of where they travel in the vast oceans
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Despite their great size, we still have little idea of where they travel in the vast oceans 撇开体积不论, 我们仍然不知道它在这广袤的海洋中去哪里旅行

and none at all of where they go to breed.
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and none at all of where they go to breed. 也不知道它们去哪里繁殖

To survive, they must find prey daily
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To survive, they must find prey daily 为了生存,它们必须每天寻找猎物

They will only use just enough energy to make their kill
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They will only use just enough energy to make their kill 它们只用恰到好处的力量来猎杀

return to the very same beach where they were hatched.
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return to the very same beach where they were hatched. 回到它们孵化过的海滩上繁殖

How they find their way back across thousands of miles of open ocean,
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How they find their way back across thousands of miles of open ocean, 它们如何从1000英里外再次赶回

They must get to the sea as soon as possible
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They must get to the sea as soon as possible 它们必须尽快爬向大海