There were a few points to note when writing a voice-over: The narration should briefly summarize the main plot and background of the story so that the reader can quickly understand the background and atmosphere of the story. 2. The narration should be beautiful and fluent, able to attract the attention of the readers and make them want to continue reading. The narration should have a sense of rhythm to make the story more lively and interesting. When you write a narration, you can describe their actions, expressions, language, etc. from the perspective of the protagonist or important characters in the story to describe the atmosphere and plot of the story. For example, if you are writing a mystery novel, you can describe their actions, expressions, language, etc. from the protagonist's point of view, so that the reader can feel the tense atmosphere. For example," He held the phone tightly in his hand and listened to the voice on the other end of the phone. Then he looked up at the sky and felt a strong headache." This was a short narration that described the actions and expressions of the protagonist to let the readers feel the tension of a mystery novel.