The second paragraph of the article mainly used a contrasting description technique. By comparing the cold and warm sun in winter, the readers could feel the preciousness and rarity of the warm sun in winter. This kind of writing technique could attract the attention of the readers and make them pay more attention to the content and details of the article, enhancing the expressiveness and emotional resonance of the article. At the same time, through comparison, it can also highlight the characteristics and personality of the article, making the article more vivid, interesting, convincing and infectious.