Competition is a common phenomenon in our social life.We compete when we play games and when we try to do better than others in our study.There is constant competition for academic degrees, jobs, customers, money and so forth. In a sense, competition is one of the motive force to the development of society.

　　竞争在我们的社会生活中是很普遍的现象。当我们玩游戏的时候和当我们想比别人获得更好的学习成绩的时候，我们都在竞争。对于获得学位，工作，客户和资金等的时候都存在不断的竞争，从某种意义上说，竞争是社会发展的动力之一。