Time to grind
Mo Dun's spare time, a Chinese idiom, Pinyin is m ó D ù nzh ī Xi á, which means spare time in war. It comes from Wang Lanquan, the successor of Sinology in the Guochao period.
Idiom explanation
Leisure: leisure, leisure.
The origin of Idioms
Wang Lanquan, a Sinologist of the state Dynasty, written by Jiang Fan in the Qing Dynasty: "although Mr. Wang worked for nine years in the army, he spent his spare time chanting and reciting at once, and he would never stop reading."
Time to grind
divine countenance and gem quality - xiān zī yù sè
neither priest nor layman -- nondescript - bù sēng bù sú
debauch people and turn them into gangsters - huì yín huì dào