知其然，未明其所以然。如何用淺顯的語言解釋這種現象？

來源: TBz 於 2011-11-07 09:15:40 [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.