Is the Millennium frost?

"White dew is frost" is an idiom, which means that the dew on autumn night condenses into frost. It is a metaphor that autumn makes people feel cold because of the change of solar terms. From "Autumn Poems" by Liu Yuxi, a poet in the Tang Dynasty: "Autumn has been sad since ancient times, and I say autumn is better than spring. On the clear sky and the clouds, it brings poetry to Bixiao. " The whole poem of Autumn Ci is as follows: "Autumn Ci Liu Tang Yuxi has been sad and lonely since ancient times, and I say autumn is better than spring. There is no one in the clear sky in Wan Li, and a crane, Ling Yunfei, has aroused my meditation on the blue sky. The mountains and rivers are clear and frosty at night, and several trees are deep red and light yellow. Trying to get under a tall building is as crazy as spring. Note: 1. From ancient times to the present: from ancient times to the present. 2. Send: make. 3. Clear into the bone marrow: clear and white. To the bone, describe deep feelings. 4. hey: temptation.