What are the sentences that express children's efforts?

1, I went to school before dawn this morning. I often study late into the night and can't eat any tired meals.

The child is always working hard.

Children stay up late to study.

4, the child's efforts have reached the point of teasing Liang Cone.

Children are diligent in learning cultural knowledge.

6. Children can't put down their books almost every day, and they can't even read when they go to the toilet.

7. Children fly to and from school and home in Dai Yue every day.

8. On the way to school, children have no regrets, rain or shine.

9. I saw that she was absorbed in calculation, and a thin layer of sweat appeared on her forehead, which seemed to forget everything around her.

10. From time to time, the teacher's lecture and classmates' reading sound came from the classroom, like a harmonious ensemble.