The past is in vain

The past is in vain

It is a Chinese idiom, which comes from the book of history, Wucheng. It describes that the troops in front surrender to the enemy and beat their own people in turn.

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Explain that the troops in front surrendered to the enemy and beat their own.

source

In the book of history, Wu Cheng said, "I will fight in the pastoral area, but I will not fight against my division. I will fight in the front and attack in the north of the rear. I will be bleeding." in the case of Jiazi, he will be in the pastoral area, and he will turn back. The first chapter of the romance of Fengshen by Xu Zhonglin in Ming Dynasty

Discrimination of words

After King Zhou of Shang Dynasty was a licentious king who tortured the nobles by "observing the heart through laparotomy", it aroused the great indignation of the masses of the people and caused the serious dissatisfaction of many tribes around him. Therefore, at the beginning of the battle, the Shang army turned around and fought back with the Zhou army to attack the capital of Yin.