By the time dinosaurs jumped on the feather bandwagon, they were so last eon!

等到恐龙进化出羽毛的时候，它们其实已经很落后！

Geologists measure time in eons, eras, periods, epochs and ages, with eons being the longest.

地质学家用宙、、、和期来衡量时间，宙是最长的。

But in those deep craters it can persist, accumulating over the eons.

但在那些陨石坑深处水就得以被保存，并在亿万年中不断积累。

Over the eons of our evolutionary changes, our diet became very varied.

经过亿万年的进化变化，我们的饮食变得非常多样化。

Eons later, the comet crashed into a planet in another solar system.

亿万年后，这颗彗星跟另外一个太阳系上的行星撞。

Over the eons, nature has stumbled on many different ways of desquishifying organisms.

亿万年来，大自然偶然发现许多不同的生物脱水方法。

Apparently, Mars suffered a tremendous impact from an object hundreds of kilometers across eons ago.

显然，火星在亿万年以前曾被一个宽达上百公里的物体撞击。

Species have been accidentally hitchhiking their way around the planet for eons, well before humans got involved.

早在人类涉足地球之前，物种就已经在地球上偶然搭便车。

Apparently, star formation in ellipticals came and went eons ago.

显然，椭圆星系中恒星的形成活动在很久以前就开始。

For millions of years, the Gunnison River has been carving this canyon at work across eons of isolation.

几百万年来，甘尼森河静静地流过孤独的黑峡谷。

Over the eons, this has cleaned out a lot of otherwise dangerous objects that could have eventually hit Earth.

长久以来，这清理许多原本可能会撞击地球的危险物体。

There was certainly life before that, but didn't leave evidence we can find so many eons later.

在那之前肯定有生命存在，但没有留下可供这么多后的我们发现的证据。

The pictures it returned were breathtaking, and revealed a world that has seen a lot of pummeling over the eons.

它传回来的照片令人叹为观止——展示一个千万年来伤痕累累的界。

And scientists have studied them for eons.

科学家们已经对它们进行亿万年的研究。

And those changes have been affected by eons of ideas.

这些变化受到亿万年思想的影响。

The craters in the highlands are from countless impacts over the eons from asteroids and comets.

月陆上的陨石坑是由无数的小行星和彗星撞击而形成的。

An estimated four billion species emerged on our planet in past eons.

据估计，在过去的亿万年里，我们的星球上出现四十亿个物种。

Over eons, time has worked its magic here.

历经亿万年，时光在此施展它的魔法。

As eons pass, the nuclei in the frozen black  dwarf slowly combine.

随着亿万年的流逝，冰冻黑矮星中的原子核慢慢结合。

They’re a motley crew, independently evolving similar mouthparts at least four times over the eons.

它们是形形色色的群体，在漫长的岁月中至少四次独立进化出似的口器。