一天下午,有位老人正在街上走着,突然听到有个声音说:“喂,你能帮帮我吗?”他向四周望了望,一个人都没有,于是他继续往前走。这时那个声音又说:“喂,你能帮帮我吗?”老人再次停下脚步,望了望四周,还是一个人都没有。这次他仔细地环视起四周来,碰巧视线落到了人行道上,只见人行道上有一只青蛙。尽管觉得跟青蛙说话有点尴尬,老人还是问道:“刚刚是你在跟我说话吗?” One afternoon an old man was walking down the street and suddenly heard a voice saying, “Hey, can you help me?” He glanced around, none of them, and he continued go. Then the voice said again: “Hey, can you help me?” The old man paused again, looked around, or none at all. This time he looked around carefully, and happened to fall on the pavement, seeing a frog on the sidewalk. Despite the awkwardness of talking to a frog, the old man still asks: “Did you just talk to me?”