promo
noun [ C ] uk/ˈprəʊ.məʊ/ us/ˈproʊ.moʊ/ promos
informal（尤指现代流行音乐唱片的）广告片
a short film made to advertise a product, especially a pop song
US（为增加书或电影的销量而设计的）广告宣传
an advertisement, broadcast announcement, or discussion with a writer, film producer, actor, etc., designed to give attention to a book or film in order to increase sales