alliance between the two families by marriage
Qin Huan jin'ai, a Chinese idiom, Pinyin is Q í nhu ā NJ ì n à I, which means that Qin and Jin were married from generation to generation at that time, and later called the relationship of marriage between the two surnames as "Qin Huan jin'ai" or "the relationship between Qin and Jin"; it describes the relationship between the two sides as very harmonious and close; it is also called "the relationship between Qin and Jin". It's from drunk flower Yin.
Idiom explanation
Qin, Jin: the state of Qin and Jin in the spring and Autumn period.
The origin of Idioms
Yuan Xiangben's poem "drunken flower Yin" said: "Qin huanjin's love for Wu and Yue is poor in this life."
Idiom usage
As an object or attribute; used between men and women.
alliance between the two families by marriage
extraordinary as if done by the spirits - shén gōng guǐ lì
extort excessive taxes and levies - héng zhēng bào liǎn
be still suffering from the shock - jīng hún wèi dìng
mountains fall and the earth splits - shān bēng dì tā
act towards one another like brothers and sisters - rú xiōng rú dì