From "Ten Years of Zuo Zhuan and Zhuang Gong": "It takes courage to fight. Make a big noise, then decline, and then exhaust. " In ancient times, morale was highest when drums were played. Later, it was more metaphorical to get things done in one fell swoop when you are quick-thinking and energetic, or to go all out to rush forward.

Explain a drum: the beat of the first drum; Work: cheer up; Qi: Courage. When I played drums for the first time, my morale was greatly boosted. It is a metaphor to summon up energy when you are full of energy and finish the work in one breath. Used as predicate and attribute; It refers to the structural contraction synonym of one go while the iron is hot, and the antonym is like failure, failure and collapse.

The original "Zuo Zhuan Zhuang Gong Ten Years": "The husband fights bravely. Make a big noise, then decline, and then exhaust. " Fighting depends on the courage of soldiers. The first drum beating can inspire soldiers' courage, the second drum beating will weaken their courage, and the third drum beating will exhaust their courage. Background The Battle of Long Spoon took place in the 13th year of King Zhouzhuang, the 2nd year of Qi Huangong and the 10th year of Duke Luzhuang (684 BC). The two vassal States of Qilu fought in Changshao, and finally Qi was defeated and Lu was victorious. In 684 BC, troops were sent to attack Lu. At that time, Qi was strong and Lu was weak. The two armies joined forces in Changshao (now northeast of Laiwu, Shandong). The Lu army held its ground, and the Qi army attacked the drums three times, all of which had no effect and morale was low. At that time, Qi was strong, Lu was weak, and the strength of the two sides was very different. But in the end, Lu defeated the Qi army with the weak. According to Zuo Zhuan, Lu's victory has a lot to do with his shrewd planning. Lu Jun went all out to defeat the Qi Army. Cao Gui is neither a military commander nor a civil servant, but he is proficient in the art of war. He learned that Qi was going to send troops to attack, and Duke Zhuang of Lu was ready to resist, so he offered to see Duke Zhuang. His relatives, friends and neighbors all advised him: "National affairs are in the hands of those senior officials. Why do you participate?" Cao Gui said: "Those big officials are short-sighted and will not have foresight." When meeting with Zhuang Gong, Cao Gui first proposed that winning the trust of the people was an important political preparation before the war and a necessary condition for winning. And asked him to go with him in the battle, so Zhuang Gong told him to start with the car. At the place of the spoon, Qi and Lu's army met. The two sides lined up and the battle was about to begin. I saw the Qi army beating gongs and drums to prepare for the invasion. Zhuanggong is also ready to beat gongs and drums to meet him. Cao Gui stopped: "(Wait a minute) Not yet." See lujun didn't respond, and played a drum. In this way, the Qi army beat gongs and drums and made three links, while the Lu army remained on hold. It was not until the three links of the Qi army were drummed that they said, "(Now) you can join the army!" As soon as the drums of the Lu army rang, they ordered to kill the enemy, and the soldiers shouted and rushed to the enemy lines, which was extremely fierce. The Qi army was defeated and fled in confusion. Zhuang Zhengyi wanted to order the pursuit, but he was stopped. He got off the bus to check the wheel tracks of the Qi soldiers on the ground, climbed onto the front crossbar, noticed the enemy's retreat, and then said, "(Now) you can pursue!" Zhuanggong immediately ordered the pursuit. The Lu army pushed forward and drove all the Qi troops out of the country. At this time, Duke Zhuang of Lu realized why Cao Gui ordered this. Cao Gui said, "It takes courage to fight. High spirits, then decline, three exhausted. I'm exhausted, so I can overcome it. (Fighting mainly depends on courage. When playing the first drum, the soldiers had the greatest courage, but when playing the second drum, their courage declined. By the time the drums sounded for the third time, courage had dried up. The enemy's courage was exhausted, but we were full of courage and high morale, so we defeated them. Cao Gui added: "Qi is a big country, and its military strength cannot be underestimated. It is difficult to infer his situation. Maybe it will set an ambush and deceive us. I' see its chaos and watch its flag', so I can rest assured to chase it. "("Chaos ",wheel tracks are chaotic;" The flag is weak ",and the flag falls, indicating that you fled in a hurry. ) means "muster", "failed and exhausted three times" and "struggling with the flag", which comes from the story of "Cao Gui dispute" in Zuo Zhuan. Do anything, go all out when you are high-spirited and energetic at the beginning. This is called "high spirits". Attacking the target with a drum is called "one drum and one side". If things are not done well, the original courage and strength will gradually decline and run out, which is called "recession again" " [3