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As a Chinese idiom, y ú NF à iy à s à n in pinyin means that the original thing no longer exists. From the stele of longzang temple.
The origin of Idioms
Zhang Gongli's stele of longzangsi in Sui Dynasty: "the inscriptions are made of gold, the inscriptions are made of jade, the inscriptions are made of nylon, the letters are filled with letters, and the clouds are scattered."
Idiom usage
Used as an object or attribute; used in writing. The second poem of Qianshu · Guanxiu's difficult journey: "the clouds are flying and the rain is dispersing, so it is today. Embroider and carve a barren valley."
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Drinking blood to break the heart - yǐn xuè bēng xīn
desist from military activities and encourage culture and education - yǎn wǔ chóng wén
Eat sweetly and sleep peacefully - shí gān qǐn níng