公益 (gōng yì): public welfare

This company donates a portion of its profits every year to support public welfare projects, helping children in poor areas go to school.

This weekend I plan to do volunteer work at the community center, teaching elderly people how to use smartphones.

Many celebrities use their influence to participate in public welfare activities, calling on fans to pay attention to environmental protection.

After retiring, he devoted most of his time to public welfare causes, organizing volunteers to build libraries in remote mountain areas.

All the donations raised at this charity auction will be used to rescue stray animals and improve their living conditions.