The difference between the 28 years and the cardamom years lies in the age. Cardamom youth generally refers to girls aged thirteen or fourteen. Cardamom is originally a plant. Du Mu, a poet of the Tang Dynasty, has a poem "Farewell" about thirteen years old. Cardamom sprouts appear in early February. Twenty-eight years is a good time for fifteen or sixteen years old. , refers to the most beautiful period of youth, and is generally used to describe the golden age of girls. It comes from: Tang Li Bai's "Jiang Xia Xing": Zheng Jian is a concubine, and she has been wearing red makeup for twenty-eight years.