master of ceremonies
noun [ C ] uk/ˌmɑː.stər əv ˈser.ɪ.mə.niz/ us/ˌmæs.tɚ əv ˈser.ə.mə.niz/ (abbreviation MC)
典礼官;司仪
a person who makes certain that official events happen correctly, for example by introducing performers at the right time
Synonyms: compere host
See also: emcee noun