Answer:

Counting nine cold days: (shǔ jiǔ hán tiān)

Explanation: Counting nine: Starting from the winter solstice, every nine days is a "nine", 39 and 49 are the coldest. The coldest days.

Source: Act 1 of "Liu Hulan": "It's snowing heavily in the cold weather. Although the weather is cold, my heart is warm."

Nine cold days are counted, and "Nine" is also called "Winter Nine" "Nine" is a Chinese folk solar term in winter. "Counting Nine" starts from the day of the winter solstice every year, and every nine days is a unit. There are many customs of "Counting Nine", among which "Nine-Nine Song" is the most widespread and long-standing.

In traditional Chinese culture, Nine is the number of extremes, which is the largest, most numerous, and longest-lasting concept. Nine nines, namely eighty-one, is the "biggest" number. Ancient Chinese people believed that after the winter solstice, spring would begin. Here we go.

Customs:

There are many traditional Chinese customs of counting nine, among which "Nine-Nine Songs" are the most widespread and long-standing. These songs cleverly use the phenological phenomena of nature to vividly reflect them. The weather changes in Jiujiuzhong. For most areas in my country, the weather is not the coldest from January to February, but it is just "1929, can't stretch my hand" most of the time. The solar term is the coldest time of the year, so it is said that "on May 9th, the bitch will freeze to death". After May 9th, the earth gradually returns to spring, and the weather becomes colder and warmer, so "on May 9th, 69th, look at the willows by the river; "In the seventh and eighth days, I walk in single clothes." By the ninth month, it is already the "Jingzhe" solar term, so "the thunder is heard in the ninth month, and the sound is long-lasting."

The custom of "painting nine" appeared in the Ming Dynasty. The so-called The painting is actually a picture of calculating the date of spring after the winter solstice. The Ming Dynasty's "Scenery of the Imperial Capital" records: "On the winter solstice, a plain plum branch is painted with eighty-one petals. The sun dyes one petal, and when the petals are gone and the nine-nine comes out, the spring is deep, which is called the nine-nine cold-relieving picture. In addition, in the Qing Dynasty, there was the "nine-nine cold-relieving poem picture", in which there are four lines for every nine days, *** Thirty-six sentences, the content ranges from the "Three Emperors Ruled the World" in ancient times to the "Jinluan Qing Dynasty" in this dynasty. It can be regarded as a historical "memorable event" full of elegance and interest.