This is the 6281st most frequent Chinese word.
志願者
Volunteer.
In this sentence, '志愿者' (volunteer) refers to an individual who dedicates their time and effort voluntarily to assist in community activities.
他是一名志愿者，正在帮助社区进行清洁活动。
He is a volunteer actively helping the community with cleaning activities.
Here, '志愿者' is presented as a role or status that one can assume to experience the satisfaction of contributing to society.
成为志愿者可以使人感受到帮助别人的快乐。
Becoming a volunteer can bring people the joy of helping others.
In this instance, '志愿者' highlights the act of participating willingly in service-oriented activities, often undertaken by individuals like students.