“嗨,停一下!嗨……”那不是他吗,大学的室友。我已经几次看见他,几次呼喊他,可他为何不理不睬?他踩着小小的滑板,飞速地穿行在大街小巷;车流,人流,飞速地闪在他的身后。我终于抓住他:“你不认识我了吗?在大学,我们同住一室,整整两年!” “Hi, stop! Hey ... ” That is not him, college roommate. How many times have I seen him and shouted at him, but why did he ignore it? He walked on the little skateboard and swiftly walked in the streets and lanes; traffic and flow, flashed rapidly behind him. I finally caught him: “You do not know me? In college, we live in a room for two full years!”