Participated
“Participated” 表示过去“参与了某活动、项目或讨论”，常与 in 连用，如 participated in a survey、participated in the debate。强调实际加入而非旁观。
- “Over two hundred students participated in the science fair.” (两百多名学生参加了科学展。)
- “She participated actively in the online discussion.” (她积极参与了在线讨论。)
- “Several countries participated in the peace talks.” (多个国家参与了和平谈判。)
“Participated” 来自拉丁语 “participare”（分享、分担），由 pars（部分）+ capere（拿取）构成，原义是“拿取一份、共同分享”。
“parti-” 与“部分、分享”相关；“-cip-” 来自 capere（拿）；“-ate” 为动词后缀；“-ed” 表示过去式。
在学术、职场和公共事务语境中，“participated” 常用来强调主动投入，如 participated in research、participated in community service。
- 固定搭配: “participated in” (参与……), “actively participated” (积极参与)
- 原形: participate
- 名词: participation, participant
“parti + cip + ated”：已经“拿了一份”加入其中，就是 participated。
“Everyone who participated in the workshop received a summary of the key ideas.” (每位参与工作坊的人都收到了要点摘要。)