笑了：平均睡眠時間為6--7小時。我正為7小時睡眠時間擔憂那。這下放心了。

來源: 滿兒於 2010-11-17 19:56:16 [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.