There were already people living here for millennia.

已经有人美洲大陆千年了。

It's a record of tsunami occurrences over the past three millennia.

这是过去三千年发海啸的记录。

Wisdom teeth have been around for millennia.

智齿已经存了千年。

Of course, our technology is far more advanced than what they had seven millennia ago.

当然，现我们的技术比7000年前要先进得多。

They're still there. He shrugged. As they have been for who knows how many millennia.

“他们还那里。”他耸耸肩。“他们那里不知道待了千年。

For millennia, this creature was insignificant, weak and unremarkable.

千年来，这种物都是微不足道，羸弱而平凡。

They could have orbits that last for millennia or more.

它们的公转周期可能会持续数千年甚至更久。

For millennia, it was impossible to know.

数千年来，这些都是不解之谜。

The parasite has plagued man for millennia.

疟疾祸害人类千年.

Wolves and bears have competed for millennia in these rich modern forests.

这些富饶的森林里，狼和熊的竞争已有数千年。

For more than three millennia, Aleppo has been a crossroads for traders.

超过3千年来, 阿勒波对贸易者们而言一直是十字路口。

Aspens like these have survived countless challenges in the centuries, even millennia that they've been here.

像这样的颤杨世纪以来甚至千年来都经历了无数的挑战。

Pando has survived many millennia of changing climates and encroaching ice.

经过千年的气候变化和冰川侵蚀，潘多存了下来。

People have recycled their urine and feces for a long time, for millennia.

千年来，人们一直回收自己的尿液和粪便。

A wax fan that has crossed thousands of millennia without losing a feather.

蜡质扇子经历了千万年光阴都没少一片扇羽。

And they store another kind of data, showing how the plains have changed across millennia.

它们也留存了另一样数据，即记录了大草原千年来是怎样变化的。

Two and a half millennia ago, Plato saw our tendency to seek the easy way out.

2500年前，柏拉图就看到了人类寻求捷径的趋势。

The practice of research in laboratories directly interacting with whatever matter you're studying goes back millennia.

实验室里直接与你所研究的任何物质相互作用的研究实践可以追溯到千年前。

So we are hearing a voice from three millennia ago.

我们听到的声音来自三千年之前。

The Romans buried the nails so deep that they would not be discovered for almost two millennia.

罗马人把钉子埋得如此之深，以至于乎两千年都未被发现。