求翻译：请输入您需要翻译的文本！一天放学，我打算坐公交车回家，一上车我就找了一个显眼的位置，刚坐下就迫不及待的回想，和同学们跳绳的情景。忽然一阵“咳咳咳” 的声音传入我的耳朵 ，是谁打乱了我的‘美梦’我不削的抬头一看，一位矮个，短发，半弯着腰，手里杵着一根黑色拐杖，嘴里还不断的发出“咳咳咳”声音的老爷爷。老爷爷慢慢地朝我走过来。 　是什么意思？

Please enter the text you need to translate! School one day, I go home by bus, a bus I'm finding a conspicuous location, back you just sit down and wait, and scenes of students jump rope. Suddenly a "cough cough cough" sound of passing in my ears, who upset my ' dream ' I do not look up the cut, one short, short hair, half-bent lumbar, pestle of a black walking stick in his hand, his mouth also continues to issue "cough cough cough" sound's grandfather. 　Grandfather towards me came slowly.