Common Meanings
1
bǔ补
To mend or repair something broken or damaged by adding material to make it whole or complete.
这件旧外套需要补一补了。
This old jacket needs mending.
To fill a deficiency, add what's missing, or make up for something; it can also mean to supplement, nourish, or attend tutoring.
他为了考上大学，每周末都去补习班学习。
He attends tutoring classes every weekend to get into university.
Benefit; advantage; help. Often used in phrases to express partial or no benefit, such as '不无小补' (not without some minor benefit) or '于事无补' (of no help/useless).
他提出的建议，对我们改进工作不无小补
The suggestions he put forward are not without some minor benefit for improving our work.