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废寝忘食廢寢忘食 fèi qǐn wàng shí — to neglect sleep and forget about food (idiom)

fèi (fourth tone, falling) qǐn (third tone, dipping) wàng (fourth tone, falling) shí (second tone, rising)fei4 qin3 wang4 shi2

Traditional: 廢寢忘食

to neglect sleep and forget about food (idiom)

Levels 7–9· 2021 three-band, nine-level proficiency standardverb
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