To find out what's wrong
As a Chinese idiom, Pinyin is Z ǎ og ò usu ǒ C ī, which means deliberately seeking fault. It comes from the comprehensive biography of Cui yuan in the new book of Tang Dynasty.
The origin of Idioms
"New Tang Shu · Cui yuan zongzhuan" says: "every time you are subject to prison, you must be dirty and find fault. If you don't die, you will be afraid of despicable."
Analysis of Idioms
Nitpicking
Idiom usage
Used as a predicate or attributive; used in writing
To find out what's wrong
The country is easy to change, but the nature is hard to change - jiāng shān yì gǎi,běn xìng nán yí
disciples and students of a master - táo lǐ mén qiáng
Tall buildings rise from the ground - wàn zhàng gāo lóu píng dì qǐ