定期消毒这事好办。其它的有历史原因。但总的来说，中国大城市的公共交通很方便

来源: 相对强度于 2014-06-19 19:44:41 [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.