birds

133 篇文章
were not enough to ensure the future of the birds.
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were not enough to ensure the future of the birds. 并不足以确保鸟类有一个光明的未来

ensure birds future enough not of the to were
just as birds did millions of years ago.
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just as birds did millions of years ago. 就像数百万年前的鸟类那样

did millions birds just of as ago years
The birds.
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The birds. 鸟

birds the
birds had become the last remaining branch of the dinosaur family tree.
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birds had become the last remaining branch of the dinosaur family tree. 鸟类成为恐龙族谱中仅存的一支

branch dinosaur remaining had become family birds tree of last the
But a handful of ground-dwelling birds did make it through.
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But a handful of ground-dwelling birds did make it through. 但少数栖息在地面上的鸟类 幸存了下来

ground-dwelling handful did through birds make it of but a
otherwise known as the birds.
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otherwise known as the birds. 又名“鸟类”

otherwise birds known as the
Long before the existence of birds,
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Long before the existence of birds, 在鸟类出现之前很久

existence birds long of before the
all mammals, reptiles, birds,
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all mammals, reptiles, birds, 所有哺乳动物、爬行动物、鸟类

reptiles mammals birds all
Amphibians, reptiles, mammals, and birds.
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Amphibians, reptiles, mammals, and birds. 两栖动物、爬行动物 哺乳动物以及鸟类

amphibians reptiles mammals birds and
...to the ancestors of the birds first taking to the air...
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...to the ancestors of the birds first taking to the air... 到鸟类的祖先率先上天…

ancestors taking birds air first of the to