polish painstakingly
Carving the liver and carving the kidney is a Chinese idiom. The Pinyin is di ā og ā NL ò ush è n, which means the deliberate tempering of writing, the same as "carving the liver and carving the kidney". From postscript.
The origin of Idioms
Xu Yinfang's postscript in the Qing Dynasty: "although he carved the liver and the kidney extremely, he did not rent it."
Idiom usage
As predicate, object and attribute; used in writing.
polish painstakingly
Sever one's kindness with righteousness - yǐ yì gē ēn
A net of fish makes a net of fish - yú wǎng hóng lí
hold sb . 's whip and follow his stirrup - zhí biān zhuì dèng
Take up the flag and take up the umbrella - shōu qí juàn sǎn
reckless and dissipated in behavior and speech - fàng dàn fēng liú