Read Edit View history 废寝食 fèiqǐnshí neglect sleep and food Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 废寝食/廢寢食 · fèiqǐnshí · neglect sleep and food 2026/03/04 废寝食 / 廢寢食 fèiqǐnshí neglect sleep and food to neglect sleep and food 他废寝食地钻研这项新技术。 idiom created sense Mar 4, 2026, 02:25 AM