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.
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.
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。
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.
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.
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