出版描述自然选择思想的《物种起源》十二载后，他的第二部书也付梓印刷。
Twelve years after he published "on the Origin of Species", which described the idea of natural selection, a second book hit the presses.
1859年《物种起源》一书发表了，选尔文被看作是在科学界最重要的思想家之一。
In1859The Origin of Specieswas published and Darwin was recognized as one of the most important think ers in science.
1859年《物种起源》一书发表了，选尔文被看作是在科学界最重要的思想家之一。
In1859was published and Darwin was recognized as one of the most important thinkers in science.
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