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
a symbol of dogged determination - jīng wèi tián hǎi
weigh the advantages and disadvantages - quán héng lì bì
good timing, geographical convenience and good human relations - tiān shí dì lì rén hé
logical administration and harmonious people - zhèng tōng rén hé
the war was going on with all its stresses and strains - bīng huāng mǎ luàn