duplication
It's a Chinese idiom. Its pinyin is Chu á ngsh à ngsh à Chu á ng, meaning redundant and repetitive. It comes from the preface of Yan's family precepts.
The origin of Idioms
In the preface to Yan's family precepts written by Yan Zhitui in the Northern Qi Dynasty, it is said that "since the Wei and Jin Dynasties, scholars have paid more attention to the theory and the complex affairs, and they touch each other repeatedly. They are just like building houses under the house and using their ears on the bed."
Analysis of Idioms
To make a bed under the bed
Idiom usage
Is it not bewilderment to cover up water to help water and to make a good use of it in bed? Liu Zhiji's Shi Tong Duan Yu in Tang Dynasty
duplication
die to preserve one's virtue intact - qǔ yì chéng rén
Back to the mountains and back to the sea - huí shān zhuǎn hǎi
It's better to cheat than to cheat - zhà jiān bù jí