Volunteer work gives her life (a sense of) purpose.

做志愿工作使她的生活有了意义。

《牛津词典》

Last year I decided to do some volunteer work.

去年，我决定做一些志愿者工作。

youdao

I am going to do volunteer work in the museum.

我打算在博物馆做志愿者工作。

youdao

Members take part in campus activities and volunteer work, and may also live and go to parties at Greek houses.

VOA: special.2009.08.07

I will volunteer myself to work on extra projects too.

我也会主动提出参与更多的项目。

I want to 实战 - SpeakingMax英语口语达人

It tells the story of four doctors and their volunteer work in Liberia and the Democratic Republic of Congo.

VOA: special.2010.07.26

Kindness not only does not belong, it gets relegated to family life, religion or volunteer work.

FORBES: Kindness At The Office

Those social entrepreneurs will be looking for people who already demonstrate social consciousness through volunteer work.

FORBES: LinkedIn Report: Claim Your Volunteer Hours on Your Profile

One is national service full-time volunteer work, usually done by 18-25-year-olds and organised by federal bureaucracies.

ECONOMIST: Lexington