ago

114 篇文章
just as birds did millions of years ago.
Walden 21
•
15 0 2

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
Sixty-six million years ago,
Walden 21
•
15 0 0

Sixty-six million years ago, 6600万年前

sixty-six million ago years
Sixty-six million years ago,
Walden 21
•
15 0 0

Sixty-six million years ago, 6600万年前

sixty-six million ago years
Ninety million years ago,
Walden 21
•
15 0 0

Ninety million years ago, 9000万年前

ninety million ago years
By 130 million years ago...
Walden 21
•
15 0 0

By 130 million years ago... 到了1.3亿年前

million by ago years
in a way the reptiles perfected millions of years ago.
Walden 21
•
15 0 2

in a way the reptiles perfected millions of years ago. 爬行动物在数百万年前 将这种方法予以完善

perfected reptiles way millions of in the ago years a
252 million years ago...
Walden 21
•
15 0 5

252 million years ago... 2.52亿年前

million ago years
More than 300 million years ago,
Walden 21
•
15 0 0

More than 300 million years ago, 3亿多年前

than million more ago years
They first appeared more than 400 million years ago
Walden 21
•
15 0 1

They first appeared more than 400 million years ago 它们最早出现在四亿多年前

appeared than million more first they ago years
It first evolved hundreds of millions of years ago,
Walden 21
•
15 0 1

It first evolved hundreds of millions of years ago, 最早在数亿年前进化

evolved hundreds millions first it of ago years