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据《东亚经贸新闻》载：长春一位76岁的刘大爷花钱印了100张“让座感谢卡”,赠送给主动让座者。这则不起眼的消息,在笔
According to “East Asia Economic and Trade News” contains: Changchun, a 76-year-old Grandpa Liu printed 100 printed “thank you card”, presented to the initiative to seat. This is humble message in the pen