幸亏一位主持人提示，她才不至于尴尬脸红。Her blushes were saved by a prompt from one of her hosts.他担任过改装赛车大赛的主持人。He acted as grand marshal of a stock car race.我不想被归类为儿童节目主持人。I don't want to be pigeonholed as a kids' presenter....

“主持人”的英语可以翻译为：compere，emcee，impresario，question-master，toastmaster ...