Practice and grind
As a Chinese idiom, Pinyin is C ā or ó um ó zh ì, which means repeated training. From the epitaph of Zou Qing of Song Dynasty.
The origin of Idioms
Song Yeshi's epitaph of Zou Qing of Song Dynasty says, "all the books and studies show that the Tao is the heart of people's desire. It's not common for people to go in and out, and it's good to practice and temper."
Idiom explanation
I've been honing my words.
Practice and grind
Exchange wine for scarlet beetle - jīn guī huàn jiǔ
splits off as it meets the edge of knife without effort - yíng rèn ér lǐ
without money after one 's death - shēn hòu xiāo tiáo