谢谢表扬专业博士喜欢！哈哈。

来源: 于 2011-09-10 22:08:44 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

I did spend more time on this one. I had the first paragraph long time ago, but didn't write the second paragraph until today. Too many things in my mind, didn't know where to start.