感觉这只能发生在很久很久以前，现在发生的几率微乎其微。。谢谢采纳

退避三舍计算机我叫我姐我能问你我那我那

退避三舍
春秋时候，晋献公听信谗言，杀了太子申生，又派人捉拿申生的弟弟重耳。重耳闻讯，逃出了晋国，在外流忘十几年。
经过千幸万苦,重耳来到楚国。楚成王认为重耳日后必有大作为，就以国群之礼相迎，待他如上宾。
一天，楚王设宴招待重耳，两人饮洒叙话，气氛十分融洽。忽然楚王问重耳：“你若有一天回晋国当上国君，该怎么报答我呢？”重耳略一思索说：“美女待从、珍宝丝绸，大王您有的是，珍禽羽毛，象牙兽皮，更是楚地的盛产，晋国哪有什么珍奇物品献给大王呢？”楚王说：“公子过谦了。话虽然这么说，可总该对我有所表示吧？”重耳笑笑回答道：“要是托您的福。果真能回国当政的话，我愿与贵国友好。假如有一天，晋楚国之间发生战争，我一定命令军队先退避三舍（一舍等于三十里），如果还不能得到您的原谅，我再与您交战。”
四年后，重耳真的回到晋国当了国君，就是历史上有名的晋文公。晋国在他的治理下日益强大。
公元前633年，楚国和晋国的军队在作战时相遇。晋文公为了实现他许下的诺言，下令军队后退九十里，驻扎在城濮。楚军见晋军后退，以为对方害怕了，马上追击。晋军利用楚军骄傲轻敌的弱点，集中兵力，大破楚军，取得了城濮之战的胜利。
故事出自《左传·僖公二十二年》。成语“退避三舍”比喻不与人相争或主动让步。
英文
Retreating about Thirty Miles as Condition For Peace
During the Spring and Autumn Period (770-476 B.C.), Duke Xian of the State of Jin Killed the crown prince Sheng because he had heard slanders about Sheng and believed them. He also sent his men to arrest Chong Er, Shen Sheng and believed them. He also sent his men to arrest Chonh Er, Shen Sheng's brother. Hearing the news, Chong Er escaped from the state of Jin, remaining a fugitive for more than ten years.
After innumerable hardships, Chong Er arrived at the State of Chu at last. King Cheng of the State of Chu treated him with high respect as he would have treated the ruler of a state, believing that he would have a vright fuure.
One day, King Cheng of the State of Chu gave a banquet in honoudr of Chong Er. Suddenly, amid the harmonious atmosphere of drinking and talking, King Cheng of the State of Chu asked Chong Er. "How will you repay me when you return to the State of Jin and become its ruler one day?" After thinking for a moment, Chong Er said, "You have plenty of beauties and attendants as well as jewelry and silk cloth, and the state of Chu abounds in rare brides and animals. What treasure can the State of Jin boast having to present to your majesty?" King Cheng of the State of Chu said, "You are too modest. Nevertheless, you still have to show your gratitude to me in one way or another, I presume?" Smiling, Chong Er answered, "If I should be fortunate enouge to return to the State of Jin and become its ruler, the State of Jin would be friendly to the State of Chu. If, one day, there should be a war between the two states, I would definitely order my troops to retreat three SHE (one SHE is equivalent to thirty LI. The LI is a Chinese unit of length equivalent to 1/2 kilometre. And, therefore, three SHE is about thirty miles.) as a condition for peace. If, under that condition, you were still not reconciled, I would have to fight with you."
Four years later, as might be expected, Chong Er returned to the State of Jin and became its ruler. He was none other than Duke Wen of the State of Jin famous in ancient Chinese history. Ruled by him, the State of Jin became increasingly powerful.
In the year 533 B.C., the Chu troops and the Jin troops confronted each other in a battle. Faithful to his promise, Duke Wen of the State of Jin ordered his troops to retreat about thirty miles. After retreating, the Jin troops were stationed at Chengpu. Seeing that the Jin troops were retreating, the Chu troops thought that the enemy troops were afraid, and began chasing them. Taking advantage of the Chu troops' arrogance and their talking the Jin troops lightly, the Jin troops concentrated their forces and inflicted a crushing defeat on the Chu troops, thus winning the victory of the battle of Chengpu.
This set phrase, "retreating about thirty miles as a condition for peace," is derived from the Chapter "The Twenty-second Year of Duke Xi" in ZuoZhuan, the famous commentary by Zuo Qiuming on The spring and Autumn Annals. The idea of this set phrase is to give way to somebody in order to avoid a conflict.

春秋时期，晋献公晚年时十分宠爱一个叫骊姬的妃子，并且为把骊姬的儿子奚齐立为太子，竟将原来的太子申生给杀了。太子申生一死，晋献公的另外两个儿子重耳和夷吾，都感到了危险，于是便逃难到了别的诸侯国。
经过千幸万苦，重耳来到楚国。楚成王认为重耳日后必有大作为，就以国群之礼相迎，待他如上宾。把他奉为上宾，用招待诸侯的礼节招待他。重耳也对楚成王十分尊敬。两个人就这样交上了朋友。
一天，楚王设宴招待重耳，两人饮酒叙话，气氛十分融洽。忽然楚王问重耳：“你若有一天回晋国当上国君，该怎么报答我呢？”重耳略一思索说：“美女侍从、珍宝丝绸，大王您有的是，珍禽羽毛，象牙兽皮，更是楚地的盛产，晋国哪有什么珍奇物品献给大王呢？”
楚王说：“公子过谦了。话虽然这么说，可总该对我有所表示吧？”
重耳回答：要是托大王的福，我能够回到晋国，那我一定努力跟贵国交好，让咱们两国的百姓过上太平的日子。但是万一两国发生了战争，那么在两军相遇的时候，为了报答大王您，我一定退避三舍。如果还不能得到您的原谅，我再与您交战。古时候行军，每三十里叫一“舍”。退避三舍，就是退让九十里的意思。
后来，情况发生了变化，重耳真的回到了国内，成了晋国的王。这就是史称的晋文公。晋文公即位以后，整顿内政，发展生产，把晋国治理得渐渐强盛起来。他也想能像齐桓公那样，做个中原的霸主。
当时，东方齐国的霸权已经衰落，南方楚国的势力已发展到黄河流域。在这种形势下，晋文公采用孤偃等人的建议，打起“尊王攘夷”的旗号，平定周王室内乱，在诸侯中树立了自己的威信；还把原来的两军扩大到三军，积极准备与楚国争霸中原。
公元前632年夏，楚成王攻打宋国，宋向晋求援，晋国联合宋、齐、秦等国向归附于楚国的曹、卫进攻，迫使楚军北上。楚成王见形势急转直下，便率军暂撤，井命主将成得臣放弃对宋国的围攻，避免和晋军决战。但大将成得臣刚愎自用，不顾形势的变化，仍率楚军杀向晋军驻扎地。
而此时晋文公却命令自己的军队不要与楚军交锋，而是退避后撤。晋军的将士很不理解，问：“仗还没打，怎么就退了呢？楚军虽然强大，但是为了保卫自己的国家，我们愿意拼死一战！”
晋文公说：由于当初我在楚国时，受到楚王的厚待，因此曾在楚王面前曾答应过，如果两国交战，晋国情愿退避三舍（一舍等于现在的三十里）。所以即使这一仗败了，我们也要履行诺言。于是，晋文公下令军队向后一口气退了30里（一舍）；发现楚军朝前移动，就又退了30里（一舍）；见楚军仍然紧追不舍，就再退了30里（一舍）。他们总共退了三舍，退到城濮（今山东鄄城西南），驻扎下来。
楚军见晋军后撤，便想停止攻。可是楚军主将成得臣却不答应，他率领军队步步紧逼，一直追到城濮，跟晋军相持。成得臣还一边派人向晋文公下了战书，措词十分傲慢。
其实，晋文公主动令晋军“退避三舍”，名义上是履行他在楚国时向楚成王许下的诺言，实际上却是为了实现“以退为进”、“后发制人”的战略目的。楚军见晋军后退，以为对方害怕了，马上追击。晋军利用楚军骄傲轻敌的弱点，集中兵力，大破楚军，取得了城濮之战的胜利。
城濮之战是春秋前期最大的一次战争，也是关系中原全局的战争，使中原小国摆脱了楚的控制，归附了晋国。战后，晋文公提高了声望，周襄王亲自到浅土（今河南原阳县东南）慰劳晋军。
晋文公趁机在浅土给天子建了一座新宫，约各国诸侯，开了个大会，订立了盟约。这样，晋文公当上了名副其实的霸主。