不知从什么开始,我每次回家,门敲了好长时间,父亲才慢吞吞地过来把门打开。我很纳闷,以前父亲可不是这样的啊,只要听到我敲门声,父亲准会很快地把门打开,从没让我久等。一次,我敲了好长一会儿的门,父亲才终于过来把门打开。他看到我,表情讪讪的,好像有些歉疚。我不耐烦地问道:“我敲了这么时间的门,您怎么才来开门啊?”父亲凄然地说道:“我听到了敲门声,可我就是站不起来,这双腿不听使唤了。”我疑惑地问道:“您这腿怎么啦?”父亲无奈地说道:“老啦!这腿不利索了。”父亲轻轻地一句“老啦!”让我一下子愣住了,我的心仿佛被什么东西 I do not know from what the beginning, every time I go home, the door knocked for a long time, my father came slowly to open the door. I wonder if my father used to be like that. Just hearing me knock on the door, my father would have opened the door quickly and never let me wait. Once I knocked on the door for a long while, my father finally came and opened the door. He saw me, shy expression, it seems a little guilty. I impatiently asked: “I knocked on the door for such a time, how did you come to open the door ah?” “Father sadly said: ” I heard a knock on the door, but I just can not stand up, this leg Do not listen to the call. “I asked with doubt: ” What’s the matter with your leg? “Father said helplessly: ” old! This leg unfavorable. “Father gently ” old ! "Let me suddenly shocked, my heart seems to be something