volunteer名词动词造句

Right. What I want now is two volunteers to come down to the front.(名词）对了。我现在需要的就是两个自告奋勇者到前面来。Aunt Mary volunteered to clean up the kitchen.（动词）玛丽姨妈主动要求打扫厨房。He volunteered for the army in 1939.（动词）他在1939年自愿参军。