I'm training to be a volunteer for the Olympic Games.

我正在为成为奥运会的一名志愿者而接受训练。

youdao

She was a volunteer, she hadn't had to be press-ganged.

她是位志愿者，不是被逼来的。

《柯林斯英汉双解大词典》

I have applied to be a volunteer for the 2022 Asian Games.

我已经申请成为2022年亚运会的志愿者了。

youdao

"The volunteer is actually the face of South Africa to anyone who will be coming here for first time, even those that will be coming here for the second or third time who actually don't know our venue well.

VOA: standard.2010.03.26

His own mother will volunteer to be his nurse, and Pharaoh's daughter will eventually adopt him and name his Moses: again, this is an Egyptian name.

而他的亲身母亲则会自愿当他的奶妈，法老的女儿最终会收养他，给他命名“摩西“,再说一次，这是一个埃及名字。

耶鲁公开课 - 旧约导论课程节选

Vantage Point used to be Volunteer Vancouver.

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To help AmeriCares with its disaster response, visit the website to make a donation or sign up to be a volunteer.

CNN: Isaac pounds the Gulf Coast: How to help

And you know, what we say to people is please volunteer to be a poll worker, because you then can learn what the laws are, and you can help your neighbors in your community understand and be one of the people to give this advice.

NPR: Can Your Clothes Keep You From Voting On Election Day?