I. Allusions
At that time, there were many vassal States in the Central Plains, among which Qin and Chu were the two most powerful countries. They often have wars and plunder each other's land. In 3 12 BC, a famous "Danyang War" broke out between Qin and Chu.
In this war, Qin Jun occupied the dangerous terrain of Jingziguan and defeated the powerful Chu army by virtue of its superiority. After the victory of Qin State, Jingziguan area was incorporated into its own territory. However, it wasn't long before the restoration of Qin Chu-Han, and the State of Qin allocated the Jingziguan area to the State of Chu. This process is capricious, so the idiom "sooner or later" comes into being.
Second, explain
Qin Chu (Qin and Chu: vassal states in the Spring and Autumn Period and the Warring States Period) refers to the warring states period, when two vassal states of Qin Chu were opposed to each other and often fought wars. Some vassal States sometimes favored Qin and sometimes Chu for their own interests and security. Metaphor is capricious. Joint structure, with derogatory meaning; Generally used as predicate and attribute in sentences.
The use of idioms in different periods
I. Written usage
"Chao" means that during the Warring States period, two vassal states of Qin Chu were opposed to each other and often fought wars. Some vassal States sometimes favored Qin and sometimes Chu for their own interests and security. Metaphor is capricious. Joint structure, with derogatory meaning; Generally used as predicate and attribute in sentences.
Second, use examples.
Ming Biwei's Legend of Bamboo Boat Party: "Seeing Fu Kai is as rich as an enemy and more luxurious than a servant. To this end, I am not clear in my heart. "
Notes on Qing Ji Yundu Weicaotang: Part III: "I am a slave of my family for the third time. How can I be a slave of Qin?" Young master rashly advises you, and if you don't obey, you will sue your young master. This is pleasant and worthwhile, and it is not ungrateful to miss it for life. "
Cai's "Yue Quanzhuan" back to the 31st: "Yang Hucheng is a villain who repeatedly commits crimes."
Qing Kong's Peach Blossom Fan 29: "Sigh Qin Chu, three years according to Liu."