超越：最后的共同祖先。
我们真正发现这个最后的共同祖先的唯一途径就是不断地寻找。
The only way we're really going to know what this last common ancestor looked like is to go and find it.
对现代人类和现代黑猩猩的那个“最后的共同祖先”的寻找仍会继续下去。
The search continues for the 'last common ancestor' from which both modern humans and modern chimpanzees can trace their ancestry.
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