adj.有份的；n
The participants were mainly young people. 参加者大部分是年轻人。
All the participants in the debate had an opportunity to speak. 所有参加辩论的人都有机会发言。
The participants in such a procession. 游行者这种队列的参与者
They give cheers to all the participants. 他们向所有参赛者欢呼。
Participants were contacted once yearly. 对受观察者一年访问一次。
