遇到不熟悉的英语表达，我们很容易望文生义，造成理解上的错误。
比如，食物名称常出现在习语中，但表达的意思却千差万别！
Egghead?学究
a very studious person, intellectually gifted in the field of academics, a very intelligent person
勤奋好学，在学术上富有天赋，一个非常聪明的人
? I think Jane will do well in her finals. She has always been a kind of egghead from elementary school all the way through college.
我认为简会在期末考试中取得好成绩。从小学到大学，她一直都学得很好。
Big cheese 人物
an important and influential person
一个重要且有影响力的人
? Do you know Peter? He’s a big cheese at the company. He may help you to get a good job.
你认识彼得吗？他可是公司里的大人物，他可以帮助你在那里得到一份好工作。
Couch potato 极为懒惰的人，电视迷
a very lazy person who watches too much
一个很懒而且总是在看电视的人
? My uncle is a couch potato. You never see him without the remote control in his hand.
我的叔叔是一个电视迷。他的手里永远都拿着遥控器。
Tough cookie 不易受别人影响的人
a very determined person, durable and robust person, a person who is difficult to deal with
非常有决心，坚韧，难对付的人
? There is a tough cookie on the phone. He insists to talk to the manager. Shall I put him through?
打电话的这个家伙非常强硬，他坚持要和经理谈谈，我能把电话接给经理吗？
Bad apple 坏家伙
troublemaker, criminal
制造麻烦者，犯人
? He’s a real bad apple. If I were you, I wouldn’t let my daughter go out with him.
他真是个坏蛋。如果我是你，我就不会让我女儿跟他出去。
Top banana 主要人物
leader, boss, the chief person in a group, the head of a project
领导，老板，团队负责人，项目负责人
? I don’t know when we’ll finish. Ask Jack. He’s the top banana here.
我不知道我们什么时候结束，问杰克，他是我们这儿的头儿。