看包装上的过期日期，过期的一律扔掉。。

来源: ERommel 于 2011-11-20 18:05:24 [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.