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5665 篇文章
and not enough of their energy reaches the ground to enable trees to grow.
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and not enough of their energy reaches the ground to enable trees to grow. 到达地面的能量很少 并不足以支持树木生长

but it can outrun the wolf if only it manages to keep its footing.
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but it can outrun the wolf if only it manages to keep its footing. 但如果全速奔跑起来 它仍可以比狼跑得更快

and now it's easier to target an individual.
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and now it's easier to target an individual. 狼群便更容易锁定单个目标

Packs of them, eight to ten strong, shadow the migration.
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Packs of them, eight to ten strong, shadow the migration. 8~10只狼组成的小股部队 悄悄地尾随着迁徙的大军

Running directly at the herd is a ploy to generate panic.
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Running directly at the herd is a ploy to generate panic. 直冲向鹿群是一种制造恐慌的战术

Newborn calves have to be up and running the day they are born.
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Newborn calves have to be up and running the day they are born. 新生的小鹿必须 在出生的第一天就站起来奔跑

It's time to put them to the test.
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It's time to put them to the test. 现在该是考验它们的时候了

That is where she hunts for the seal she needs to feed her cubs.
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That is where she hunts for the seal she needs to feed her cubs. 而母熊则需要在那里捕杀海豹 喂养幼熊

It starts to melt the sea ice.
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It starts to melt the sea ice. 海面的冰层开始融化

and eager to reach their mother,
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and eager to reach their mother, 急切盼着来到母亲身旁