距离地球表面5百万公里。
酷地球公司预定今年夏天启动一百万瓦的发电设施。
在农业时代的开端，地球是大概有五百万人。
At the dawn of agriculture, there were around 5 million people on the planet.
七百万年前，地球上出现了最早的人类。
The earliest human appeared on the earth seven million years ago.
地球上的生命始于数百万年以前。
太阳是一个庞大炽燃球体，它比地球大一百万倍。
The sun is a large blazing ball, a million times larger than the earth.
太阳是一个庞大炽燃球体，它比地球大一百万倍。
The sun is a large blazing ball, a million times larger than the earth.
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