B2 a person who does something, especially helping other people, willingly and without being forced or paid to do it自愿参加者,(尤指帮助别人的)志愿者
More examples
As a volunteer on the childcare project, I really saw life.
He emphasized that all the people taking part in the research were volunteers.
We're saving money by using volunteers.
She placed her name on the list of volunteers.
Charities such as Oxfam are always trying to recruit volunteers to help in their work.
C1 [ I or T ] to offer to do something that you do not have to do, often without having been asked to do it and/or without expecting payment自愿做;无偿做;作志愿者;主动提出做
[ T ] to give information without being asked主动提供(信息)
More examples
You can accuse me of cowardice, but I still wouldn't volunteer to fight in a war.
I volunteered to do the washing up.
Many women volunteered to work as nurses in the war.
Did anybody volunteer to tidy up?
They all volunteered to help with the digging.
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noun²
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