短語to flip out的意思是受到震驚而失控暴怒。
　　例句：
　　When Kate heard that she hadn't got a place at her first choice of university she really flipped out and started shouting and screaming.
　　The flight was cancelled and lots of passengers started flipping out at the airline staff.
　　注意：
　　The flip side的意思是“事物的反面”，特別用來指物體或論點的負面。
　　例句：
　　The Olympics is a great event; on the flip side it's very expensive to host.
　　常識補充：
　　Leonardo da Vinci was one of the earliest inventors to work on the concept of an artificial flipper to help swimmers. The American inventor Benjamin Franklin also made an early design from wood.
　　達芬奇是研究如何用人工腳蹼來提高游泳速度這一概念的最早的發(fā)明者之一。美國的發(fā)明家弗蘭克林也曾發(fā)明過木質的腳蹼。

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