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来源:雅诚德英语网
Some groups that had descended from the same parent population were no longer reproductively compatible—they had evolved into separate species.
一些由同一亲本群体进化而来的群体在繁殖上不再相容——他们进化成了不同的物种。
Some groups that had descended from the same parent population were no longer reproductively compatible—they had evolved into separate species.
一些由同一亲本群体进化而来的群体在繁殖上不再相容——他们进化成了不同的物种。