他后悔在校时没用功读书。

He regrets not having worked harder at school.

Source: Tatoeba

Sentence Composition

1 他 tā
  1. (third-person singular) (since the early 20th century, usu. male) he; him; his
  2. (bound form) other; another; some other (as in 他日 tārì and 他人 tārén)
2 后悔 hòuhuǐ to regret; to feel remorse
3 在校 zàixiào (attributive) to be enrolled in a school (or university etc)
=4 时 shí old variant of 時 shí
=4 时 Shí surname Shi
=4 时 shí
  1. o'clock
  2. time
  3. when
  4. hour
  5. season
  6. period
5 没用 méiyòng useless
6 功 gōng
  1. meritorious deed or service
  2. achievement
  3. result
  4. service
  5. accomplishment
  6. work (physics)
7 读书 dúshū
  1. to read a book
  2. to study
  3. to attend school