His research made a significant contribution to the scientific community.

I am doing volunteer work to contribute to the community.

I volunteer at the local library on weekends.

I volunteer at the local library on weekends.

In my area, a summer festival is held every year.

We participated in the local cleaning activity over the weekend.

We are actively participating in local activities.

We should take responsibility as part of society.

I go jogging every day.

I am studying Japanese.