學習初期很容易掌握。過了5年級，就沒什麽戲了。

來源: 知名度比較高於 2012-05-16 18:40:18 [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.