participant noun

ADJ. full | active | unwilling, willing She was an unwilling participant in his downfall. | key, leading, main, major | course | conference, seminar

VERB + PARTICIPANT attract Protests on 12 April attracted 100,000 participants.

PARTICIPANT + VERB attend sth

PREP. ~ in an active participant in the discussion

You can also check Google Dictionary: participant (English, 中文解释 )

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