好像对称吧！但是功用不一样吧！是不是分阴阳？

来源: 查无此人于 2012-07-16 20:16:12 [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.