废寝忘食
fèi qǐn wàng shíCommon spoken expression used by native Chinese speakers in daily life.
[Authentic Cinema Evidence Base]
(2 clips)
00:03
(大哥) ── Previous context
“what new product are they researching so tirelessly?”
00:03
(林镇长的身体 我们大家都为他担心) ── Previous context
“But he doesn't listen to us. Once he works, he forgets everything.”