2. The host, also called the host, is the person who organically connects the theme, guests, procedures and purposes with the audience. In ancient times, the emcee was the host. In Modern Chinese Dictionary, the master of ceremonies is defined as "the person who reports the procedure when holding a ceremony or meeting". Now the emcee is the host, and now it is mainly divided into announcer and wedding emcee. Master of ceremonies is very big, so big that the political, military, cultural, social leadership, organization and management coordination of a country, and even the mutual coordination between countries need master of ceremonies. As small as some folk celebrations. For example, the host of wedding, birthday, opening and other activities is called the master of ceremonies (including memorial service) by the people.