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9806 篇文章
Catching food in the perpetual darkness is not easy.
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Catching food in the perpetual darkness is not easy. 在永恒的黑暗中捕捉食物十分困难

so it is extremely difficult to find in the gloom.
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so it is extremely difficult to find in the gloom. 因此它很难在黑暗中被发现

This one measures 45m and is the longest animal ever recorded.
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This one measures 45m and is the longest animal ever recorded. 这一只达到了45米 是有记录以来所有动物中最长的

As you descend, the sunlight rapidly fades.
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As you descend, the sunlight rapidly fades. 随着越潜越深 阳光会迅速减弱

200m down, you enter the twilight zone...
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200m down, you enter the twilight zone... 200米深处 是一片黄昏世界

The least known parts of it are its great depths.
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The least known parts of it are its great depths. 这之中最不为人知的区域是海洋深处

With the orca gone, the rays can resume their courtship...
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With the orca gone, the rays can resume their courtship... 虎鲸离开后 蝠鲼群得以继续它们的求偶行为

This family are the only orca known to hunt rays like this...
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This family are the only orca known to hunt rays like this... 这一家子是已知的虎鲸群中 唯一用这种方式捕猎蝠鲼的

..only to be forced back up again by the experienced female.
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..only to be forced back up again by the experienced female. 却被经验丰富的雌虎鲸逼回海面

And now, with the exhausted rays trapped against the surface,
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And now, with the exhausted rays trapped against the surface, 精疲力竭的蝠鲼无路可逃