Chaired
vt. 主持（chair的过去式与过去分词形式）
🗣️ 情景例句
No. She's at work now.
不在，她正在上班。
Did you get any sleep on the plane?
你在飞机上睡觉了吗？
He was just able to lie down on the ground, but could not stand up.
他只能躺在地上，但不能站起来。