What does Du Fu's poem "There are phoenix feathers on the pond today" mean?

Who first came to Korea/Du Fu

Five nights of missing sound urges the arrow to dawn.

Jiuzhong Chunse Zui Xiantao

The flag is getting warmer, and the dragon and snake move.

The breeze in the palace is high.

Go to the bar with a sleeve full of cigarettes.

Poetry becomes pearls and jade.

Experience the beauty of world silk

There are phoenix feathers on the pool today.

Poetry annotation

[Note] (1) Jia She: Jia Zhi. Scheeren: official name, that is, Chinese book Scheeren. (2) Five nights: Dawn will break. Arrows: Missed arrows. A tool for timing. (3) No.9 Middle School: the place where the emperor lived; (4) Dragon and snake: the image on the standard. (5) World Silk Fiber: Mastering the imperial edict from generation to generation. Jia Zhi and his father are both the scheerers of Zhongshu, who are in charge of the imperial edict, so they are called "the palm of the world". (6) Mao Feng: This is a metaphor. A person is a weakness of literature rather than his father.

[Translation] The missed arrow carved by Wu Geng reminds the morning; The palace is full of spring scenery, and the peach blossom is as red as an intoxicating face. The banners embroidered with dragons and snakes fluttered in the warm sun; There is a breeze blowing around the palace, and birds fly high. After the end of the first generation, the courtiers' sleeves were full of imperial cigarettes, and they wrote beautiful poems of pearls as jade. If you want to know the glory of those who drafted imperial edicts for emperors in past dynasties, you only need to look at Jia Zhi, a gifted scholar in Zhongshu Province.