小孩挺聰明的。知道收縮的含意，就可以做到。吸奶孩子懂吧，一個原理。

來源: Weipan 於 2019-05-16 12:00:41 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.

Change Ad Consent