have no eye for
Chinese idiom, Pinyin is m ǎ Nb ù Z à iy ì, which is interpreted as not paying attention at all. It's from revenge the unfortunate man.
The origin of Idioms
Ba Jin's Revenge: the unfortunate man: "this is an old violin. He plays it with a bow carelessly."
Analysis of Idioms
Antonym: take things seriously
Idiom usage
The child is indifferent to what he does.
have no eye for
Thin leaves and withered flowers - yè shòu huā cán