立冬是中国二十四节气中的第一个冬季节气，通常在每年的11月7日或8日。它标志着冬季正式开始，天气逐渐寒冷，大地开始进入休眠状态。在中国传统文化中，立冬是一个重要的节气，人们会进行各种庆祝活动，如吃饺子、喝姜汤、煮酒等，以增强身体的抵抗力，迎接即将到来的冬季。

In Chinese culture, Lì Dōng (立冬) is the first solar term of winter, which usually falls on November 7th or 8th. It marks the beginning of the winter season, with the weather gradually becoming colder and the earth entering a dormant state. Lì Dōng is an important solar term in traditional Chinese culture, and people celebrate it by eating dumplings, drinking ginger soup, and cooking wine to enhance their resistance and prepare for the coming winter.