I am just a small potato！ 我是一个小人物！ 已经学习过"沙发上的土豆"（电视迷），he is a couch potato！ For example， when you are in your family， you are a small potato！ But when you are in school， everyone knows you are a monitor and students in your class will regard you as a big shot！ she is a big shot 她是个大人物！ a big shot=a VIP！ VIP=very important person Are you a VIP？ Or are you a small potato？ I am sure you will become a VIP or big shot！