The expression of the theme varies from style to style, and different styles of articles have different names for the theme. In literary works, the theme is generally called "theme thought", and sometimes it is simply called "theme", which refers to the main idea expressed by the author through the narration and description of all themes, or a kind of emotion and intention revealed. In general narration, the theme is called the central idea or central meaning. In expository writing, the theme can also be called central idea and central meaning. In argumentative writing, it is generally called central argument or basic argument. Please adopt