ago

114 篇文章
having split away from Africa over 120 million years ago.
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having split away from Africa over 120 million years ago. 它在一亿两千万年前就已经脱离非洲大陆

Once and not so long ago
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Once and not so long ago 曾经在不久以前

Eggs that were laid a few weeks ago, at the start of the season
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Eggs that were laid a few weeks ago, at the start of the season 几周前下的蛋,在这个季节伊始

It died five months or so ago.
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It died five months or so ago. 约5个月前死亡

They were in their prime twenty million years ago
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They were in their prime twenty million years ago 2000万年前它们就已经在这里

A seed that may have fallen only a few days ago, now bursts through the leaf litter.
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A seed that may have fallen only a few days ago, now bursts through the leaf litter. 几天前才落下的种子突然破土而出

And a century ago, the bison were reduced to barely 1,000.
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And a century ago, the bison were reduced to barely 1,000. 一百年前 野牛的数量曾锐减至不到一千

500 years ago they supported one of the world's great civilisations
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500 years ago they supported one of the world's great civilisations 500年前 它们维系着 一个世界上最伟大的文明

all of which evolved from just one single ancestor isolated here thousands of years ago.
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all of which evolved from just one single ancestor isolated here thousands of years ago. 它们都是从一个数千年前 即被隔绝在此的祖先进化而来的

Some 50 million years ago
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Some 50 million years ago 大约5千万年前