Cao Cao (cáo cāo 曹操) in the history of China, known for clever treacherous outstanding figures. One hot day, he marched out his troops under a burning sun in a mountainous area. And he lost the way. The journey was long and the sun was scorching. After their fruitless and tiresome march, all voiced their great dissatisfaction with the leadership of cao cao. They bitterly complained of their great thirst. The antagonism of the soldiers was growing fast and they were on the verge of staging a mutiny. The subordinate officers were helpless to cope with the situation.cao cao, however, in the nick of time cleverly and treacherously gave orders to his troops to march to the nearby plum trees for a rest and announced that soldiers would be allowed to eat the juicy sour fruit as much as they desired.At the thought of the sour fruit the soldiers' complaint of great thirst as well as the antagonistic feeling were quickly forgotten. based on the story the later generation formed the proverb "to quencve already attained that which was expected or desired.

曹操是中国历史上以聪明奸诈而闻名的杰出人物。一天，他在赤日下山区行军，迷失了路径，烈日当头而路途又遥远，士兵们在长时间的疲劳行军后，口渴难耐。于是众人都对曹操的领导表示不满，士兵的反抗情绪异常紧张，即将形成背叛的状态。下级官长不知如何应付这危机。曹操在这紧要关头机敏下令：士兵行至前面的梅林休息。并且准许士兵尽量吃多汁的酸梅，不受约束。士兵们想着酸梅的味道，口渴就立刻缓和下来，反抗情绪也安定了。后人用上面的故事作成成语"望梅止渴"来比喻一个人幻想目的已经到达了以安慰自己的情况。

望梅止渴 (wàng méi zhǐ kě)
【翻译】quench one's thirst by looking at plums.
【例句】面对无法实现的欲望，我们只能从望梅止渴中得到一些安慰。
【释义】原意是指梅子酸，人想吃梅子就会流涎，因而止渴。后比喻愿望无法实现，用空想安慰自
            己。
【近义词】画饼充饥