U are really interesting guy.

来源: PF,PF, 于 2004-10-16 07:38:24 [] [旧帖] [给我悄悄话] 阅读数 : (110 bytes)

异性相吸的万有引力定律 和 同性相斥的作用力等于反作用力定律

only you can think out this humor words.

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