How to write the subtitle format

Subtitle is an important part of an article, which is used to summarize the main content of an article or paragraph and attract readers' attention. Subtitles should be concise, accurate and orderly. When writing a subtitle, you can use bold words or italics to emphasize it, or you can use symbols such as numbers or letters to mark it. By using subheadings reasonably, the article can be more organized, clearer and easier to read and understand.