I am just a small potato! 我是一個小人物!
我們已經(jīng)學習過"沙發(fā)上的土豆"(電視迷),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!