废寝忘食 fèiqǐn-wàngshí to skip one's sleep and meals
(idiom) to skip one's sleep and meals; to be completely wrapped up in one's work
How to remember 废寝忘食: 废 to terminate + 寝 to sleep + 忘 forget + 食 food = to skip one's sleep and meals.
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How it is used
- Idiom: to forget sleep and food - utterly absorbed in work/study - 他废寝忘食地工作 (tā fèiqǐn-wàngshí de gōngzuò) he works forgetting to sleep or eat.
- Complimentary, praising devotion and effort; used adverbially with 地.
- Fixed four characters - don't split; a stronger cousin of 专心 (concentrated).