废寝忘食

fèiqǐnwàngshí

HSK 7

废寝忘食 — fèiqǐnwàngshí

1. to skip sleep and meals; to be completely absorbed in one's work or studies

   为了完成项目，他几天都废寝忘食地工作。 wèile wánchéng xiàngmù tā jǐtiān dōu fèiqǐnwàngshí dì gōngzuò — To finish the project, he worked for several days, skipping sleep and meals.