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
There you go.
东西来了。
Laws catch flies but let hornets go free.
法网只捉苍蝇，不捉黄蜂。
The children were running to move the bag of rice when they heard the sound of a motorbike.
孩子们跑去搬那包大米，这时他们听到摩托车的声音。