this frog in my pocket

　　Frog The science teacher lecturing his class in biology said, "Now I'll show you this frog in my pocket." He then reached into his pocket and pulled out a chicken sandwich. He looked puzzled for a second, thought deeply, and said, "That's funny. I distinctly remember eating my lunch."

　　老师正在给学生上生物课：“现在，我将要给你们看我袋子里的这只青蛙。”接着，他把手伸进口袋，却拿出了一份鸡肉三文治。老师满脸困惑地看了一眼，沉思了一会儿，说道：“真奇怪。我明明记得我已经把午饭吃掉了。”