我认识一位95岁的老科学家天天打乒乓球。

来源: dudaan 于 2017-11-16 17:23:00 [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.