vt.当主人（host的过去式与过去分词形式）； 双语释义：n.(名词)[C]东道主,主人 a person who receives guests and provides food, drink, and amusement for them[C]主办人〔地方,机构等〕 a person, place, or organization that provides the necessary space, equipment, etc. for a special event[C](电视等的)节目主持人