胼手胝足

with callouses on hands and feet (idiom) / to work one's fingers to the bone

lit. with calluses on hands and feet (idiom) / fig. to work one's fingers to the bone

callous on hand or foot

used in 胼胝[pian2 zhi1]

hand / (formal) to hold / person engaged in certain types of work / person skilled in certain types of work / personal(ly) / convenient / classifier for skill / CL:雙|双[shuang1],隻|只[zhi1]

callous

used in 胼胝[pian2 zhi1]

excessive

foot / to be sufficient / ample