From cloud to mud
As a Chinese idiom, Pinyin is ch ū y ú NR ù n í, which means that once you rise, you will not hesitate to step on your old friends. It comes from Xu Guchun's preface to old poems.
The origin of Idioms
Wang Tao's preface to Xu Guchun's old poems in the Qing Dynasty: "once he was in high position, had a good reputation, had a good friend in the past, was poor and poor, and was lying in the field, so he was not able to attract any help. He often cut off his entertainment poems and articles, so as not to make a single piece of them concentrated, and the good can be lamented."
Idiom usage
As an object or attribute; used in life.
From cloud to mud
Today's wine and today's drunkenness - jīn rì yǒu jiǔ jīn rì zuì
A probe into the depth of history - tàn zé gōu shēn
Distinguish between the sun and the cold - biàn rì yán liáng