好象与重力没啥关系，有的话也只是有关“上下”的定义，与镜子无涉：）

来源: Kangqilang 于 2009-04-15 15:04:57 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.