Recalling the days of yore when spring shirts were thin, that youthful exuberance flying in the university campus can no longer be found. Time is ruthless; we can only stand here and watch those verdant days fly by, as weathered marks climb onto the corners of our eyes and eyebrows. Yet time also has feelings; the once naive youths are now mature and wise, and the former little girls have grown into independent and excellent women. Most precious is the camaraderie from those days, which after many years of沉淀(precipitation), becomes more fragrant with time. Its richness and depth far surpass anything worldly.