For millennia, it was impossible to know.

数年来，这些都是不解之谜。

The parasite has plagued man for millennia.

疟疾祸害人类年.

There were already people living here for millennia.

已经有人在美洲大陆上生活上年了。

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

这是过去三年发生海啸的。

Wisdom teeth have been around for millennia.

智齿已经存在了年。

Curvy bodies have been around for millennia.

凹凸有致已存在数年。

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

“他们还在那里。”他耸耸肩。“他们在那里不道待了年。

I mean, it's one of three meals that have existed for millennia.

数年来的三餐之一啊。

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

年来，这种生物都是微不足道，羸弱而平凡。

People have lived here with hunter gatherers for millennia.

年来，人们一直和狩猎采集者一起生活在这里。

They could have orbits that last for millennia or more.

它们的公转周期可能会持续数年甚至更久。

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

在这些富饶的森林里，狼和熊的竞争已有数年。

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

超过3年来, 阿勒波对贸易者们而言一直是个十字路口。

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

经过年的气候变化和冰川侵蚀，潘多存活了下来。

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

像这样的颤杨在个世纪以来甚至年来都经历了无数的挑战。

Two and a half millennia ago, Socrates complained that writing would harm students.

两五百年前，苏格拉底抱怨写字会伤害学生。

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

年来，人们一直在回收自己的尿液和粪便。

The question of how life came to be has captivated humans for millennia.

年来，“生命是如何形成的”这个问题一直困扰着人类。

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

蜡质扇子经历了万年光阴都没少一片扇羽。

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

当然，现在我们的技术比7000年前要先进得多。