Co-chaired
(co-chair 的过去分词) n. 共同主席；联合组长
🧩 词语组成解析
[医] 钴(27号元素)
vt. 主持（chair的过去式与过去分词形式）
🗣️ 情景例句
without cultural programs in our school.
我们的学校里没有文化活动。
Never say of another what you would not have him hear.
莫说不想让人听见的话。
Anyone who has played even in a school football match knows this.
即使是仅仅参加过学校足球赛的人也有种体会。