都有，但是文字的解釋會比較複雜，畫麵的解釋更容易。

來源: 漢至於 2012-01-18 18:12:49 [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.