很久以前,蜗牛和乌龟同住在一条小河边,一起过着平淡安逸的日子。直到有一天,一只青蛙跳到了河里,蜗牛和乌龟看见了,赶忙上前问道:“你是谁啊?”“我是青蛙。”青蛙马上反问道:“你们又是谁呢?”蜗牛和乌龟也分别作了自我介绍。这时蜗牛将触角伸得长长的,好奇地向青蛙问道:“你 A long time ago, snails and turtles live together in a small river, with a plain life of ease. Until one day a frog jumped into the river and the snail and turtle saw it and hurried forward and asked, “Who are you?” “I am a frog.” The frog immediately asked, “Who are you? Snails and turtles also made their own introduction. At this time the snail will extend the tentacles, curiously asked the frog: ”You