What are the four-word idioms describing "Autumn in the Great Northern Wilderness"?

On the white festival, the grass and trees have yellow leaves, cicadas don't know the snow, the golden wind sends the cool, and the autumn wind leaves.

1, Baishang Suzhou Festival bá ishā n ɡ 4th Street

Interpretation: White business: Autumn belongs to white according to five colors, and autumn belongs to business according to five tones, so autumn is called white business; Vegetarian festival: solar terms. Refers to autumn. Source: Selected Works of Zhang Xie: "If it is a white vegetarian festival, give clothes every month." Shan Li's note: "Zhou Li": "White people in the west." "Book of Rites": "Autumn is a dream and a month is a pleasure." Liu Zhishu's Shu after Linzi:' Su Qiu will fall. "

2. Trees and grass are yellow, and trees and grass are yellow.

Interpretation: Autumn has come, and the leaves of plants and trees have turned yellow and fallen. From "Hanwu Qiufeng Ci": "The autumn wind starts in Bai Yunfei, the plants turn yellow, and the geese return to the south.

3. Do you know about snow? Chen bozhi

Interpretation: Cicada was born in summer, died in autumn, and saw no snow. Metaphor is that people are well informed. Originated from Han's "On Salt and Iron, Mutual Stitch": "I don't know people, I don't know snow, I don't know myself."

Synonym: Ignorance, barking at the sun.

Antonym: well-informed

4. The golden wind is cool. Jó jón fēng sòng Shu mǎng ? ng

Interpretation: The golden wind brings coolness, which means that autumn brings coolness, and the golden wind refers to autumn wind. In ancient times, the seasons were explained by yin and yang and five elements, and autumn was golden. Autumn wind brings coolness. From Lu Xun's "Confucius' Birthday Speech": "The golden wind sends cool, and the cool dew surprises autumn. "

Usage of idioms: as predicate and attribute; Refers to the autumn wind to send cool.

Example: the golden wind sends the cool, and the cool dew surprises the autumn. (Luxun's Merry Christmas in Hong Kong)

Autumn leaves are falling.

Interpretation: Autumn leaves, originally referring to the autumn wind sweeping away fallen leaves, are a bleak scene, but now they are more like being swept away. From Han's "On Salt and Iron": "A husband seeks foolishness with wisdom and cuts injustice with righteousness. If the autumn frost shakes the leaves. " Tang Jia-dao's Poem of Jiang Yi Going to Wu Chu: "Autumn wind gives birth to Wei River, and leaves fall all over Chang 'an. "

Example: Hong Song Mai's Mr. Yi Jian Zhiyi Qi: "Although there are no donkeys, people say that the autumn wind leaves, which is true."