Liver and kidney
As a Chinese idiom, the Pinyin is l ò UG ā NSH ù sh è n, which means painstaking study. From the title.
The origin of Idioms
Wu Mei's poem entitled "Tianxiang stone inkstone room chess manual" reads: "the court has been fond of chess for 20 years, and the heart and kidney are not concerned about money."
Idiom usage
As an object or attribute; used in figurative sentences.
Liver and kidney
disappear like snow when hot water is thrown on it - rú tāng jiāo xuě