昨天,我和爸爸到紫荆小区旁边的花园里去散步。走着走着,我们看见管道工在马路旁用磨光机打磨水管的接口,发出“吱一吱一”的响声。接着一群蝉就向管道工那儿飞去,在管道工的头顶上空盘旋着,然后纷纷落了下来。有的落在地上,有的落在管道工的肩膀上,有的甚至落在管道工的手上。另外一个管道工在一旁一会儿就抓了十几只,围观的人也一下子多了起来。我问爸爸:“这是怎么回事?”爸爸想了想说:“磨水管 Yesterday, my father and I go for a walk in the garden beside the Bauhinia plot. As we walked, we saw the plumber grinning the pipe joints on the roadside with a squeaky sound. Then a group of cicadas flew to the plumber, circled over the plumber's head, and then fell down. Some fall on the ground, some fall on the plumber's shoulders, and some even fall on the plumber's hand. Another plumber in the side of a while caught a dozen, onlookers suddenly increased. I asked Dad: “What's going on?” My father thought for a moment and said: "Water pipe