DICT.TW Dictionary Taiwan

 廢寢忘食 [ㄈㄟˋ ㄑㄧㄣˇ ㄨㄤˋ ㄕˊ; fei4 qin3 wang4 shi2]
 to neglect sleep and forget about food (idiom)
 to skip one's sleep and meals
 to be completely wrapped up in one's work
 ◄ ►