751 篇文章
but it will take all her mothering skills to keep her cubs safe
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but it will take all her mothering skills to keep her cubs safe 但是这个冰雪世界危机四伏

and the family will need to head out across the frozen sea before the mother's milk runs dry.
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and the family will need to head out across the frozen sea before the mother's milk runs dry. 在母熊奶水干涸之前 一家人需要穿越冰封的海洋

or else the egg will freeze.
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or else the egg will freeze. 否则蛋会冻坏

Here they will raise the next generation.
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Here they will raise the next generation. 在这里 它们将繁衍下一代

and the whales will soon be forced north as winter returns.
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and the whales will soon be forced north as winter returns. 很快冬季又到了 这些鲸鱼将不得不前往北方

they will be forced repeatedly to make the 600-mile round trip to gather food in the ocean.
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they will be forced repeatedly to make the 600-mile round trip to gather food in the ocean. 雪海燕将为觅食而不断往返海陆600英里

Some will travel into the heart of the continent to find it.
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Some will travel into the heart of the continent to find it. 为了找到裸岩一些企鹅会一直深入到南极中心

No bird will lay their eggs directly onto ice
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No bird will lay their eggs directly onto ice 企鹅不会把蛋直接下在冰面上

the steady roar of a billion beating locust wings will once again be replaced by nothing more than the sound of the desert wind.
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the steady roar of a billion beating locust wings will once again be replaced by nothing more than the sound of the desert wind. 无数蝗虫拍打翅膀时的喧哗将不复存在 再次取代它的只是沙漠中呼啸的风声

They will consume every edible thing that lies in their path.
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They will consume every edible thing that lies in their path. 它们将把一路上能吃的东西 全部吃得精光