不知从何时起,我每次回家,总要敲好长时间的门,才听到父亲慢吞吞的走路声。我很纳闷,父亲以前可不是这样的,只要听到敲门声,他很快就把门打开。一次,我又敲了好长时间,父亲终于过来开门了。看到我,他讪讪的,好像有些歉疚。我不解地问:“您怎么才来开门?”父亲沮丧地答:“我听 I do not know since when, every time I go home, always knock a long door, only to hear his father walked slowly. I wonder, my father was not like this, as long as I heard a knock on the door, he quickly opened the door. Once again, I knocked on for a long time, my father finally came to open the door. See me, he was shy, it seems a little guilty. I puzzled and asked: ”How did you open the door?“ ”Father depressed," I hear