What does it mean to be frost for thousands of years?

"White dew is frost", which is a natural phenomenon all over the country. August 7th to 7th of the Gregorian calendar is the Millennium, one of the 24 solar terms. "White dew" means that the weather turns cold and dew condenses into frost. The arrival of the Millennium solar terms means that the weather is getting colder and colder. Most parts of our country feel cool in the morning and evening, but the temperature is still high during the day. In the Millennium, on the land of South China, trees are full of flowers and exotic fragrance. In the north, the golden autumn sunshine gently caresses thousands of miles of fertile fields, and the earth has a bumper harvest. "White dew" means that the weather has turned cold. In the south, this solar term is busy with harvesting, carrying and threshing. In the north, crops have been harvested and threshed, and the harvested fields are golden. In the south of China, after the "White Dew", the temperature began to drop gradually, and the temperature difference between morning and evening became larger, which made people feel obviously cool, but the temperature was still high during the day.