什么是 theme?A subject of artistic representation.Music The principal melodic phrase in a composition, especially a melody forming the basis of a set of variations.A topic of discourse or discussion. See Synonyms at subject.An implicit or recurrent idea; a motif: a theme of powerlessness that runs through the diary; a party with a tropical island theme. A short composition assigned to a student as a writing exercise.Linguistics A stem.Linguistics See topic.Usage Problem To provide with a particular topic or motif. See Usage Note at themed.