a

5341 篇文章
A backbone.
Walden 21
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A backbone. 那就是脊椎

backbone a
It has a new internal skeleton that makes it both fast and agile.
Walden 21
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It has a new internal skeleton that makes it both fast and agile. 它有一种新的内部骨骼 令它既快速又灵活

internal skeleton agile fast both makes new has it that and a
It hasn't yet evolved a jaw,
Walden 21
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15 0 1

It hasn't yet evolved a jaw, 它尚未进化出颌

jaw hasn't evolved yet it a
Graced with a look of permanent surprise,
Walden 21
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Graced with a look of permanent surprise, 外表永远是一副惊讶的样子

graced look permanent surprise with of a
With a scissor-like beak...
Walden 21
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With a scissor-like beak... 房♥角石有剪刀般的嘴巴

scissor-like beak with a
Cameroceras have evolved a new way to catch their prey...
Walden 21
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Cameroceras have evolved a new way to catch their prey... 房♥角石进化出了捕捉猎物的新方法

cameroceras evolved way catch prey new their have to a
But it's not their size that makes them such a threat.
Walden 21
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But it's not their size that makes them such a threat. 但它们如此危险 并不是因为其大小

threat such size makes their not it's that them but a
The largest, with a shell eight meters long,
Walden 21
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The largest, with a shell eight meters long, 最大的 壳长八米

shell meters largest long eight with the a
are part of a dynasty known as the cephalopods.
Walden 21
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are part of a dynasty known as the cephalopods. 它们属于头足动物这个新王朝

cephalopods dynasty part known of as the are a
because on this reef, danger comes from a new type of predator.
Walden 21
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because on this reef, danger comes from a new type of predator. 因为在这块礁石上 危险来自一种新的捕食者

type danger reef comes predator new from of because this on a