The other day son bought a Changchun-Dalian train ticket at ￥98 for a trip in a few days on a ticket-selling spot by himself. The train travels at night, departing at 8：00 pm and arriving at its destination at 6：00 am next day. The ticket seller told him to wear thick clothes on the train. Both mother and I thought it improper for son to take the train. We were worried that he might catch cold, so we decided to return the ticket and buy another one for an air-conditioned day train. With the help of his uncle, yesterday son successfully reserved a ticket on the net at ￥220 for a bullet train which travels over 4 hours from late morning to mid-afternoon on January 14.