He volunteered for the army in 1939.

他在1939年自愿参军。

《柯林斯英汉双解大词典》

Several staff members volunteered for early retirement.

几位职员自愿提前退休。

《牛津词典》

I volunteered for that, too.

我再次自愿参与。

youdao

He said he knew the organization was great because his sister had volunteered for it.

VOA: special.2009.04.03

The council on educational technology in MIT has Been doing that for MIT with the help from a couple Of consultants who've actually volunteered their time.

麻省理工教育技术委员会,在一些顾问的帮助下做着这项工作,这些顾问自愿牺牲他们的时间参与其中。

麻省理工公开课 - 媒体、教育、市场课程节选

Students from the Marriotts Ridge High School in Maryland volunteered for the project.

VOA: special.2009.10.06

Ms. Skipper volunteered for five months of 2007 in a shantytown about 40 minutes outside Capetown.

WSJ: TB's Global Resurgence Amplifies U.S. Risk

Ms. Simony volunteered for the study and agreed to will the researchers her brain.

WSJ: In Florida, a One-Woman Campaign for the Ladies' Bridge Lunch

One option would have been a bionic hand, but he volunteered for the pioneering surgery.

BBC: UK's first hand transplant operation