you are right

来源: Arline 于 2011-10-06 13:35:08 [] [博客] [旧帖] [给我悄悄话] 阅读数 : (140 bytes)
回答: 供商榷: 由 NewVoice 于 2011-10-06 13:07:09

my revision: while this ability has long proven existing among animals.

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