出處標在圖上。單發應該是不活躍的意思，您可查證。

來源: 文革傳人於 2013-04-21 21:25:51 [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.