- and were self-sufficient from their first breath...
一出生就能自给自足 - able to live on insects and seeds
以昆虫和种子为食 - and capable of walking within hours.
而且出生之后几小时就能行走 - Sixty-six million years ago,
6600万年前 - 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 - From such humble creatures,
从这些不起眼的生物中 - a great dynasty would rise.
一个伟大的王朝将会崛起
Sixty-six million years ago, 6600万年前
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