从前在非洲的沙漠当中生活着一个部落。这儿的人在这生活了几个世纪,可就是从来没有走出过沙漠。后来有一个年青人,他立志要走出沙漠,找到属于他的一片绿洲。不知经历了多少失败和挫折,终干有一天他走出沙漠。当别人向他请教怎样成功地走出了沙漠时,他对大家说,我选定北斗星为方向目标,白天休息,晚上朝着北斗 In the past, there was a tribe living in the desert of Africa. People here have lived here for centuries, but they never walked out of the desert. Then there was a young man who was determined to step out of the desert and find an oasis that belonged to him. I do not know how many failures and setbacks have been experienced, and finally one day he walks out of the desert. When others asked him how to successfully get out of the desert, he said to everyone that I chose the Big Dipper as a goal, rest during the day, and move toward Beidou at night.