11月4日是中国传统节日——立冬节。这一天是农历二十四节气中的第19个，也是冬季的第一个节气。立冬节代表着冬季正式开始，人们开始准备过冬的物资，同时也是农民朋友们开始收获冬季作物的时候。

November 4th is the traditional Chinese festival - the Beginning of Winter Festival. This day is the 19th of the 24 solar terms in the Chinese lunar calendar, and it is the first solar term in winter. The Beginning of Winter Festival represents the beginning of winter, and people start to prepare for winter supplies. It is also the time for farmers to harvest winter crops.