前几天一直多事，没时间来，幸亏昨晚终于有时间来，没错过，再次多谢，你写的好好，特别是对疫苗的介绍，非常有用！

来源: Dayi 于 2017-09-28 15:17:54 [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.