正常的牙就是进化的用来咬嚼的，只有不正常的牙才需要矫正。

来源: 薛成于 2015-06-25 08:22:19 [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.