participate in后面加什么
participate in 等于 take part in，后面跟动词ing形式；
She didnt participate in the discussion.
她没有参加讨论。
They plan to participate in the autumn fair.
他们计划参加秋季交易会。
Over half the population of this country participate in sport.
这个国家一半以上的人口参加体育锻炼。
This autumn, 6000 residents will participate in the first phase of the project
今年秋天，将有6000名居民参加该项目的第一阶段。
They expected him to participate in the ceremony
他们希望他参加典礼。