it

2731 篇文章
For its size, it is one of the fastest sprinters on Earth.
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For its size, it is one of the fastest sprinters on Earth. 就其体积而言 它是地球上最快的短跑运动员之一

But his search isn't as hopeless as it might seem.
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But his search isn't as hopeless as it might seem. 但它的搜寻并不是那么毫无希望

had what it took to overcome the extreme hostility of barren Earth.
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had what it took to overcome the extreme hostility of barren Earth. 才能克服贫瘠地球的极度险恶

...and how it changed everything for life on our planet.
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...and how it changed everything for life on our planet. 以及它如何彻底改变地球上的一切

As it spread through the sunlit shallows,
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As it spread through the sunlit shallows, 当浮游生物遍布阳光照耀的浅水时

But now, they would almost bring it to an end.
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But now, they would almost bring it to an end. 但是现在 它几乎将动物生命带入终结

As long as it can find the right angle.
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As long as it can find the right angle. 只要找到合适的角度就行

It can bite down and crush its prey.
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It can bite down and crush its prey. 它能咬住并咬碎猎物

Just what it needs to outmaneuver the young fish.
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Just what it needs to outmaneuver the young fish. 刚好能够摆脱这条年轻的鱼

As it starts to circle...
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As it starts to circle... 它开始绕圈