officiate
v[I, Ipr]
~ (at sth) perform the duties of an office(4) or position 执行职务; 主持
The Reverend Mr Smith will officiate at the wedding, ie perform the marriage ceremony. 史密斯牧师将主持婚礼.
🗣️ 情景例句
I'd like to introduce you to some of my friends.
我想介绍你认识一些我的朋友。
You forgot to fasten the collar buttons.
你忘了系鞋带。
He had spotted a tiny bottle at the bottom of my case and he pounced on it with delight.