“丁零零……”悦耳的放学铃声终于响起了,我迅速背起书包,顶着炎炎夕照向着家的方向奔去。突然,背后传来了几句感人的对话,我情不自禁地放慢了脚步。一位年过花甲的老爷爷正拉着小孙女的手,和蔼地说:“小乖乖,把书包拿下来,爷爷力气大,给你背着。”老爷爷示意着让孙女把书包取下来,小孙女却躲过了老爷爷那双粗糙的大手,很有礼貌地说:“爷爷,不用了,我自己能背!老师经常告诉同学们自己的事情要自 ”Ding zero ... “ melodious school bell finally sounded, I quickly backpack, against the hot sunset toward the direction of the home. Suddenly, came a few moving dialogue behind, I can not help but slowed down. A year old handkerchief is pulling granddaughter’s hand, kindly said: ”Little obedient, get the bag down, grandpa strength, to your back.“ Grandpa gestures for the granddaughter to take the bag Down, the little granddaughter has escaped the grandfather that rough pair of hands, very politely said: ”Grandpa, no, I can back! The teacher often told her classmates to do