車輪打滑車不走，但輪子空轉時會刨沙子。越刨車越低。直到地盤碰到地麵。

來源: 宰相肚於 2013-07-20 19:30:25 [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.