Green tea is a fermented tea that is widely popular for its light, mellow taste and rich nutritional value. The production of green tea required many processes, including picking, withering, rolling, fermentation, drying, and so on. There were many types of green tea, including Longjing, Biluochun, Maofeng, Guapian, etc. Green tea is a healthy drink that is rich in vitamins, minerals, and vitamins that help maintain good health. Green tea can also lower blood fat, blood pressure, and prevent cardiovascular diseases and other diseases. In literature, green tea was often used as an image in poetry, prose, and novels to express profound emotions and thoughts. For example, the Tang Dynasty poet Bai Juyi's "Farewell to the Ancient Grass" had a line: "The grass on the plains withers and thrives every year. The wildfire never ends, and the spring breeze blows, it grows again. The far-off fragrance encroaches on the ancient road, the clear green connecting the deserted city. And send the prince to the lush garden to bid farewell." Among them,"green tea" was used to describe the feeling of parting and leaving a deep impression on others.