HSK 6 HSK V7-9
Correct

废寝忘食

/ fèi qǐn wàng shí /
Strokes

Definition

to neglect sleep and forget about food (idiom)/to skip one's sleep and meals/to be completely wrapped up in one's work

Example

Definition

(be so absorbed and occupied as to) forget all about eating and sleeping; neglect one's meals and sleep; skip one's meals and sleep

1
Fèiqǐnwàngshí
废寝忘食
gōngzuò
工作

devote oneself heart and soul to one's work (to the extent of neglecting one's meals and sleep)