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来源:雅诚德英语网
Not only are evolutionary throwbacks possible, they sometimes play an important role in the forward march of evolution.
进化返祖现象不仅有可能,有时还在进化的发展中扮演重要的角色。
Not only are evolutionary throwbacks possible, they sometimes play an important role in the forward march of evolution.
进化返祖现象不仅有可能,有时还在进化的发展中扮演重要的角色。