16 篇文章
...allowing the whales to generate sustained bursts of energy.
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...allowing the whales to generate sustained bursts of energy. 所以能够产生持续的能量爆发

two-and-a-half-meter-long ancestors of the whales.
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two-and-a-half-meter-long ancestors of the whales. 身长2.5米 是鲸的祖先

But unlike whales, they still spend much of their time lazing on land.
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But unlike whales, they still spend much of their time lazing on land. 但与鲸不同 它们多数时间仍懒洋洋地躺在陆地上

Whales, bigger than any other animals that have ever lived.
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Whales, bigger than any other animals that have ever lived. 鲸鱼是史上最大的动物

of these whales anywhere on Earth.
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of these whales anywhere on Earth. 最大的南露脊鲸群之一

Not so long ago, these whales faced a graver threat.
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Not so long ago, these whales faced a graver threat. 不久之前 这些鲸鱼面临着更严重的威胁

But global changes now threaten the great blooms of plankton on which the whales depend.
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But global changes now threaten the great blooms of plankton on which the whales depend. 但是全球环境的变化 让蓝鲸赖以生存的浮游生物急剧减少

three hundred thousand blue whales roamed the oceans
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three hundred thousand blue whales roamed the oceans 30万头蓝鲸让海洋看上去充满生气

Known as General Sherman, it's the weight of ten blue whales.
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Known as General Sherman, it's the weight of ten blue whales. 谢尔曼将军树有十头蓝鲸那么重

and the whales gorge themselves round the clock.
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and the whales gorge themselves round the clock. 鲸鱼昼夜不停地在此进食