I'd learned that our world is a rocky planet, orbiting one star among the 100 billion others in our galaxy, which is but one of hundreds of billions of galaxies scattered throughout the universe.

我知道我们的星球是一个多岩石的星球，在银河系1000亿多个行星中围绕着一个星球在转，地球只是整个宇宙几千亿个星球之一。

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Around 1.2 billion people live in places that are short of water, and it is running out in others such as northern China and western America.

世界上约有12亿人生活在缺水地区，而其它地区比如中国北部和美国西部，则正面临着水资源日益枯竭的局面。

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The New York Times and others reported that Yahoo had made a $1 billion offer to buy Facebook--and Zuckerberg and his partners had turned it down.

纽约时代杂志和其他一些新闻媒体报道雅虎提出愿以10亿美金收购Facebook，但是扎克伯格和他的合伙人却拒绝了这一报价。

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South Africa has spent nearly $2 billion building five new stadiums and refurbishing five others for the tournament.

VOA: standard.2010.01.22

Their stories, like those of 3 billion others, are of women seeking to make it in what is still today mostly a man's world.

CNN: Women's power: A story with sharp divide

Since 1994, more than 800, 000 AmeriCorps members have contributed more than 1 billion hours in service to others across America.

WHITEHOUSE: Our Top Stories

Many of the unscientific folk medicine beliefs, the ones that failed us for centuries, are making a comeback, one that is supported by a multi-billion dollar supplement industry among others.

FORBES: Michigan May Legalize Fake Doctors