To prove that I'm still in posession of the blog, I'm here to update. I mean when you have nothing to do, u have nothing write in your blog, when you have lots of stuff to take care of, you 'll be too occupied to write what u want to write in the blog. U see ,it's hard to keep updating the blog on time.Months ago , I was idling  about the steets in Lanzhow, but now I'm rushing all the time to classes ,libraries,and abstruse lectures and in the same time I have to work hard to make up for the knowlege that I missed to acquire when I was an undergraduate. Time is limited with so many things to achieve... . I have to get started to meet more challege tomorrow.

 Well, some thing intersting. today, I attended a lecture given by a French mathematician from HK. He delivered the lecture in his not smooth english. Not knowing how to say certain terminologies in Chinese, he had to peek at his paper from time to time, which made the whole situation a little bit funny. Anyway , I still thank him not just for what I learned during the lecture but also for the unique lecture maybe ever in my life given by a foreign mathemation through the medium of Chinese.