I'm not sure
Chi Chi Wu Xing, a Chinese idiom, Pinyin is ch í ch í w ú x í ng, which originally means to think about it slowly before you leave, and describes to leave reluctantly. From Mencius, wanzhangxia.
The source of the idiom is Mencius wanzhangxia: "Confucius went to Qi, followed by Xi, and then he went to Lu, saying:" I'll go to my parents' country, too. "
Chinese PinYin : chí chí wú xíng
I'm not sure
talk till one 's tongue and lips are parched. shé bì chún jiāo
used figuratively for studying hard. chuān bì yǐn guāng
till seas run dry , stones crumble. shí làn jiāng kū