好像是：打鸣的鸡肯定不下蛋，下蛋的鸡肯定不打鸣。

来源: 陈洲于 2010-03-27 18:00:46 [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.