1297 篇文章
but they are present.
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but they are present. 还是有意外的惊喜

They were in their prime twenty million years ago
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They were in their prime twenty million years ago 2000万年前它们就已经在这里

and they live for thousands of years.
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and they live for thousands of years. 寿命更可达数千年

Birds are fortunate. When the seasonal crop is gathered, they can fly south
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Birds are fortunate. When the seasonal crop is gathered, they can fly south 鸟类是幸福的.当收获季节结束时,它们可以向南方飞去

but soon they dominate the land.
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but soon they dominate the land. 再往南它们便马上支配了这片土地

Once the mother and calf have reached their feeding grounds, they will separate.
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Once the mother and calf have reached their feeding grounds, they will separate. 一旦母鲸和小鲸到达他们的给养地 它们就要分开

The fat reserves they lay down now
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The fat reserves they lay down now 它们现在积累的脂肪

but they have razor sharp bills and a feisty character.
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but they have razor sharp bills and a feisty character. 但是企鹅有尖利的喙和易怒的性格

But first they must cross a crowded beach,
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But first they must cross a crowded beach, 不过首先它们要通过拥挤的海滩

They only thrive in cold temperate seas for only these waters contain sufficient food necessary to fuel such a ravenous predator.
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They only thrive in cold temperate seas for only these waters contain sufficient food necessary to fuel such a ravenous predator. 它们只呆在冰冷的海里,也只有大海才有充足的食物 供这种贪婪的掠食者享用