Which idiom is used to describe forgetting to eat and sleep in order to study?

Angry and forgot to eat? [fā fèn wàng shí]: I studied or worked so hard that I forgot to eat. Describe being very diligent.

Sentence making: forget to eat when you are angry, and forget to worry when you are happy. I don't know if I'm old enough.

Forget about eating and sleeping? [fèi qǐn wàng shí]: I forgot to sleep and eat. Describe to concentrate on your efforts.

Make sentences:? I haven't played a game that can make me forget to eat and sleep for a long time.

Burn ointment? [fé n gā o jí gu ǐ]: ointment: grease, which refers to lamps and candles; Succession: continue to take over; Rudder: sunshine. Light the oil lamp and connect the sunlight. Describe working hard or reading.

Sentence: He studied hard regardless of everything, like a demon, and finally he was admitted to Peking University.

Eating pajamas? [[gàn shí xiāo yī]:] Eat late and get dressed before dawn. Describe being diligent in political affairs.

Sentence: The secretary listens to politics frequently and eats night clothes.

Day and night? [yyy ǐ ǐ]: Night is connected with day. Describe stepping up work or study.

In order to finish the task ahead of time, the workers are working day and night.

Dai Yue? 【 pī xīng dài yuè 】: Dai Yue in the stars. It's hard to describe running around all night or going out early and coming back late.

Sentence: Children in mountainous areas run around this mountain road every day in order to study.

Tireless? [zī zī bī juà n]: Diligence: Diligence, no slack. Refers to hard work or study.

Sentence making: As long as you keep studying, you can become an outstanding person.

Focus? [Zhuān xιn zhιι]: extreme; Chi: Will. Put all your thoughts on it. Describe wholeheartedly.

Sentence making: concentrate on your study, don't be absent-minded.