是啊，沒有足夠能量，就隻有沿著原來固有的軌道運行。

來源: wxcsci 於 2011-05-31 14:14:40 [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.