What does the ancient poem "Mujiang Lingdu" mean?

The setting sun is spreading in the water, and half of the river is rustling and half is red. The loveliest thing is the ninth day of September. The bright pearl's bright crescent moon is shaped like a bow.

A sunset sank into the river, and the river was half green and half brilliant red. The loveliest thing is that night on the third day of September, as bright as a pearl? The crescent moon is shaped like a bow.

About the author: Bai Juyi (772 ~ 846), whose name is Lotte, was famous for believing in Buddhism in Xiangshan in his later years. He was born in Xinzheng, Zhengzhou, Henan. He was a great realistic poet in China in Tang Dynasty. His poems have a wide range of themes, diverse forms and plain language, and are known as "Poet Saint" and "Poet King". Official to Hanlin bachelor, Zuo Zanshan doctor. Up to now, there are Bai's "Changqing Collection", and the representative works include Song of Eternal Sorrow, Charcoal Man, Pipa Travel and so on. Bai Juyi was born in Xinzheng, Zhengzhou, Henan Province, and was buried in Luoyang. Bai Juyi's former residence memorial hall is located in the suburb of Luoyang. Bai Yuan (the tomb of Bai Juyi) is located at Pipa Peak in Xiangshan, south of Luoyang.

Note: (1) Poems written by the river at dusk. Yin, a form of ancient poetry.

(2) Sunset: the light of sunset. Also refers to the sunset glow.

⑶ Se Se: The original meaning is bright blue treasure, and here it means bright green.

(4) poor: cute. September 3 rd: the third day of the ninth lunar month.

5. Zhenzhu: Pearl. The moon is like a bow: on the third day of the ninth lunar month, the first quarter moon bends into a bow.

Appreciation: "Ode to the Twilight River" does not always write "Twilight River Scenery". If we only look at the title of Ode to Mujiang, it seems that this poem should be sung until the twilight river scene around sunset, but the words "night" in the poem, "poor night in September" and "dewdrops as real as pearls as bows" are obviously writing about "night". According to the explanation in Ci Hai: "Dew is water droplets that condense on the surface of the ground or ground objects because of the heat emitted by water vapor in the air, which makes the surface temperature of the ground or ground objects lower than the air temperature (but still higher than 0℃). It is more common in sunny and windless nights or early morning. " It can be seen that the title and content of this poem are not consistent, and it is not always written about twilight river scenery. When understanding this poem, we must grasp this feature, and we can't just understand the content mechanically from the title. Some people think that the title of this poem is not completely consistent with the time in content, which is the author's negligence or pen mistake. In fact, this situation is very common in Tang poetry. For example, Du Fu's "Sunset" has been written from dusk to "grass dew drops autumn roots"; Jia Dao's Twilight in the Mountain Village was also written from sunset to bright moon. Therefore, we can't study literary works completely with the research methods of natural science.