participating in the strike cost me my job.
参加罢工而使我失去工作
A person who is present at an event without participating in it.
旁观者处于某事件发生的现场但没有参与的人
It's good to see our singers participating with the best competitors from other countries.
看见我们的歌手和其他国家的优秀歌手一起比赛是一件使人愉快的事。