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
Take it side again .... OK, and switch. Stretch it out.
再侧身……好 左右交替。尽量伸展。
It is so necessary for you to have some rest and relaxation.
你特别需要休息和娱乐。
Yes. Could you ask him to call me, please?
可以。请你告诉他给我打个电话，好吗？