高投入、高產出是不能持久的，還是平衡比較好。

來源: 不知道我是誰於 2011-05-24 21:14:58 [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.