1801 篇文章
But there are parts of the world that have no seasons.
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But there are parts of the world that have no seasons. 但是 世界上有些地方却没有四季

the cats have been pushed to the very edge of extinction by hunting and the destruction of their habitat.
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the cats have been pushed to the very edge of extinction by hunting and the destruction of their habitat. 由于盗猎和栖息地遭到破坏 这些大猫已经被推到了灭绝的边缘

but the Russian cats have thick fur to shield them from the cold.
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but the Russian cats have thick fur to shield them from the cold. 而俄罗斯的猫科动物则有厚实的皮毛 帮助它们抵挡严寒

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

Further south the winter snows have almost cleared from the Arctic tundra.
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Further south the winter snows have almost cleared from the Arctic tundra. 在更远的北极苔原上 冬雪几乎已经完全消失

Now the mother can start hunting for the seals they must have,
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Now the mother can start hunting for the seals they must have, 现在母熊将猎杀海豹 获取紧需的食物

but they don't have their mother's sense of urgency.
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but they don't have their mother's sense of urgency. 不过它们并不像母熊那样着急

and the cubs must have the shelter of the den.
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and the cubs must have the shelter of the den. 熊崽们必须回到洞中避寒

the only food the cubs have known since they were born deaf and blind beneath the snow some two months ago.
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the only food the cubs have known since they were born deaf and blind beneath the snow some two months ago. 自从熊崽们两个多月前又聋又瞎地 在雪下出生以来 母乳就是它们唯一的食物

The penguins stay when all other creatures have fled
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The penguins stay when all other creatures have fled 其它动物早已逃离 只有企鹅留了下来