你在加拿大吧？一年四次洗牙，在美国没听说过，或许有，但我是没听说。

来源: 笑薇. 于 2016-02-11 16:02:16 [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.