1并不是个孤独的数字。一项新数据分析确定地球上所有生命都起源于一个共同的祖先。
关于地球上生命的起源有好几种说法。
There are several sayings about the origins of life on earth.
他的关于地球上生命起源的理论站不住脚。
His theory about how life on Earth began doesn't hold water.
地球的生命是如何起源的？
地球上生命的起源是个使天文学家感兴趣的问题。
The origin of life on earth is a question that interests astronomers.
地球上生命的起源是个使天文学家感兴趣的问题。
The origin of life on earth is a question that interests astronomers.
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