give students/ citizens motivation to…给学生/公民动力去……

　　narrow the gap between the wealthy and the impoverished 减少贫富差距

　　curb crimes 控制犯罪

　　allocate money to投资于…

　　promote the development of… 促进…的发展

　　It is obvious that…显而易见，…

　　play a key role in 起关键作用

　　enhance the efficiency of…提高效率

　　enrich one’s experience …丰富某人的经验

　　keep society safe and stable 保持社会稳定

　　have an obligation to do …有责任去…

　　afford people entertainment and pleasure 给人们提供娱乐

　　create employment opportunities 创造就业机会

　　put something in the first place = give priority to… 把…当成首要任务

　　is less time-consuming and more economical 省钱又省时间

　　broaden one’s horizons 开阔人的眼界

　　contribute to … 为…作贡献

　　fulfill one's potential 发挥......的潜力