volunteer是什么意思(volunteer可数吗)

volunteer可数。

Now then , why do not youvolunteer?
那你为什么不自告奋勇呢？

Maryvolunteeredto answer the teacher 's question .
玛丽主动回答老师的提问。

She often doesvolunteerlabour during holidays ..
放假时她常去参加义务劳动。

Ivolunteeredto act as chauffeur .
我自愿充当汽车司机。

Volunteerspressed forward for the deadly game .
志愿者争先恐后地参加这一冒险的比赛。