胼手胝足

Explanation: Corpus, callosum: calluses. Grind calluses on the hands and feet. Describe the often hard work. 　　Usage: Joint type; for adverbial; for written language 　　Source: Song Zhu "Jiujiang Peng Li Debate": "Where Yu comes on the window-Nothing, toiled, but not that sick, faint desire to pad big enough economic world, to clothing and food and then the students yeah! " 　　Examples: Compatriots of the money is not easy to get, due to their year-round ~, worked extremely hard, live frugally, saved up. (Fen "War has a warm patriotic compatriots do") Thesaurus:  callosity extremity