Idiom describing the hard work of teachers in correcting homework at night.

You can use hard work and sleepless nights.

Hard work _ Kingsoft iciba

Spelling:

Hello, I'm good.

Explanation:

Oh: spit; Li: Sandy. Metaphor is thinking hard. Mostly used in literary creation or research. It also means to pour out the truth or embrace sincerity.

Go out:

Tang Han wrote in the poem "Return to Pengcheng": "The liver is paper; The book is painful. "

Example:

Teacher Li has successfully trained generations of national pillars.

Sleep all night _ Kingsoft.

Spelling:

Suo en ya mei

Explanation:

Get up early and go to bed late. Xing: get up; May: Sleep.

Go out:

"The Book of Songs Feng Wei Mang": "A night's sleep; There will be a dynasty. "