How time flies! Though I am still a graduate student now, the nature of on-job learning foreordains that these several years‘ learning can not offer me the some feeling as the one I felt when I was a full-time student. I still remember the days when I handled my meals in the cafeteria, solved the living problems in a simple dormitory, bargained with street vendors and devoted myself to crazy study in library before the exams. University life left me golden memory which is worthy of a life-long retrospection. More than ten years past, those dear friends who have spent the unforgettable time with me have become wife, mother, husband or father. Some of them are indulging in the joyfulness of success while others fail to get a desirable life. Thanks for Shanghai 2010 Expo, some of my old classmates and roommates will come from other provinces with their family members and we are given a good chance to reunite. I am looking forward to meeting all of them…