The original meaning is plum acid. When it comes to plums, we will think of sour plums, which will salivate and quench our thirst. Metaphorically, after the wish can't be realized, comfort yourself with fantasy.

Second, the source

Liu Yiqing in the Southern Song Dynasty, "Shi Shuo Xin Yu False Prophecy": Wei Wu went out to war, lost his way, and the army was thirsty, so he said,' There is a big Merlin in front, so forgive him, and quench his thirst with bitterness and sweetness.' When the foot soldiers smell it, they can get the source with their mouths full of water. "?

Shen Songkuo's "Meng Qian Bitan is ridiculous": "Wu people often call plums' Cao Gong', so they can taste plums to quench their thirst."

Third, for example

1, in the face of ideals, we should go all out to meet difficulties and never look to plum blossoms to quench our thirst.

If you don't concentrate on your study and just want to take a shortcut, I'm afraid it's useless to expect plum to quench your thirst.

3. Along the way, the general always used the method of looking for plum to quench his thirst to stimulate the team out of the desert.

Extended data:

Borrow the allusion of quenching thirst by plum blossom:

Legend has it that Cao Cao couldn't find water along the way in a March, and the soldiers were tired and thirsty, and the marching speed was very slow. In order not to affect the marching speed and delay the fighters. Cao Cao made a plan according to his own will, and ordered the left and right to tell him that there was a large piece of Meilin on the way forward, so that the soldiers could go there to pick plums to quench their thirst.

The soldiers heard that there were plums in front of them, and their mouths and throats were full of saliva, which greatly boosted their morale and greatly improved their marching speed. The soldiers met the enemy in their advance, and in order to quench their thirst with plums early, they all struggled hard and defeated the enemy. Of course, the soldiers didn't eat plums, but they found water. This is the famous story of looking at plums to quench thirst in history.

References:

Baidu encyclopedia-looking at plum to quench thirst