那天中午,弟弟弟拎着一只小铁桶和一个捕虫子的网兜,到他家附近的公园湖里,给他养的金鱼“大眼泡”捞虫子吃。那时公园里一个人也没有,非常安静,只有知了在树上不知疲倦地鸣叫。弟弟弟专心致志地在湖边用网兜捞虫子,突然听见一个奇怪的声音传来:“突突突,突突突……” At noon that day, his younger brother carrying a small metal bucket and a bug-catching net bag went to the park lake near his house and fed his “golden eye bubble” fishing bugs. At that time there was no one in the park, very quiet, only to know the tireless tweet in the tree. My brother devoted himself to fishing nets with a net at the lake, suddenly heard a strange voice came: “suddenly sudden, unexpected ...”