You were a, first a participant, and then an instructor in outward bound, which is not like we staff.

你最开始是拓展训练的参与者,后来又成为了教练，这很不同于我们的工作。

普林斯顿公开课 - 人性课程节选

and I also am a participant with Planned Parenthood.

我还参加“有计划的生育”。

求职攻略 - SpeakingMax英语口语达人

You'd have to be an authorized participant, but if you become an institution you can get authorized to trade in the auction.

只有授权参与商才可以参加,如果你是一个商业机构,你可以获得授权参与交易

耶鲁公开课 - 金融市场课程节选

What it does for him is allow him to buy his aunt this symbol of a middle-class American domesticity, and he is a happy participant in this new purchase.

这让他能够给阿姨,买这个美国中产阶级家庭生活的象征物，而他也很高兴能这么做。

耶鲁公开课 - 1945年后的美国小说课程节选

He is the author, but not the participant.

他是作者，但非参与者。

耶鲁公开课 - 政治哲学导论课程节选

He is not a participant in his own dialogue.

他并未参与自己写下的对话。

耶鲁公开课 - 政治哲学导论课程节选