If, I mean, time can go back 20 years, I will do my best to enter the university! Back on the shoulder bag, put on small sneakers, shuttle in the bamboo forest in spring, listen to the sound of the squat, sit on the square in summer to see the blue sky and white clouds, autumn and you see the yellow leaves on the path, winter soak into the literary building to see the book enough... How happy, how worry-free, What a wonderful time of vitality! Look back, the missed time will never have! Now I am just a middle-aged walker walking on the university campus to see the sunset, youth has long passed away!