退避三舍：春秋时期,晋国内乱,晋献公的儿子重耳逃到楚国.楚成王收留并款待他,他许诺如晋楚发生战争晋军将退避三舍（一舍为三十里）.后来重耳在秦穆公的帮助下重回晋国执政.晋国支持宋国与楚国发生矛盾,两军在城濮相遇,重耳退避三舍,诱敌深入而大胜.Wince:the spring and autumn period,jin strife and offer the son of jin ChongEr male fled to chu.ChuCheng king shelter and feasted him,as he promised JinChu war jin will wince (a shekel for three miles).Later in ChongEr QinMu male under the help of the ruling.Return to jin Jin support 475-221 B.C.and chu conflict,the two armies in the city which meet,ChongEr wince,to lure him deep and win.