It assures that the astronomical cycles have been in existence for billions of years.

这使人们确信天文周期已经存在了数十亿年。

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We are the products of evolution, and not just evolution that occurred billions of years ago.

我们是进化的产物，并且不仅仅是发生在数十亿年前的进化。

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Over billions of years, the gas was compressed by gravity into galaxies, stars, plants and eventually, even humans.

在数十亿年的时间里，这些气体被引力压缩成星系、恒星、植物，最终甚至变成了人类。

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And the long-awaited Airbus A400M, a military cargo plane, is years behind schedule and billions of dollars over budget.

VOA: standard.2010.07.23

And the company grew 80%per year for the first eight years compounded, and 60 % per year for the six years after that, which adds up to tens of billions real quick, as you know.

公司保持百分之八十的年增长,持续了八年，这之后的六年，每年增长百分之六十，正如你们所知，在很短的,一段时间内赚了数百亿。

斯坦福公开课 - 戴尔CEO-Michael.Dell谈创业和发展课程节选

I like Thai food just fine, but the prospect of having Thai food day after day after day-- for thousands, millions, billions, trillions of years no longer seems an attractive proposal.

我也喜欢泰国菜，但是想到日复一日-,吃上几十亿年,看似不再是美妙提议。

耶鲁公开课 - 死亡课程节选

The Moon is saturated with craters, caused by billions of years of asteroid bombardment.

FORBES: The Moon is a Natural Platform for Asteroid Mining, Detection and Deflection

The Moon acts like an asteroid magnet and has been aggregating asteroids for billions of years.

FORBES: The Moon is a Natural Platform for Asteroid Mining, Detection and Deflection

This was a radical theory at the time, which predated the concept of the world as billions of years old.

UNESCO: UK National Commission for UNESCO - Celebrations across the UK of Hooke��s contributions to the Natural Sciences of Microscopy