Explanation of nouns Han Yuefu, Han literati poems, Jian 'an poets, nineteen ancient poems, seven sages of bamboo forest, landscape poems, metaphysical poems, Yongming poems and official poems.

Han Yuefu: Yuefu was first established in the Qin Dynasty, and it was an institution under the "Shaofu" at that time to manage the teaching and learning of music and dance aria. In the early Han Dynasty, Yuefu did not exist. When the Emperor Wu of the Han Dynasty held a ceremony in the suburbs, Yuefu was rebuilt. Its duty is to collect folk songs or literati's poems for music, so as to prepare for the court's performance at sacrifices or banquets. The poems it collected were later called "Yuefu Poetry" or "Yuefu Poetry" for short. It is a new poetic style after The Book of Songs and Songs of the South. Later, those who were unhappy were also called Yuefu or Quasi-Yuefu.

Scholars' poems in Han Dynasty, including temple poems, Chu ci poems, four-character poems, miscellaneous poems and five-character poems, are not as successful as Yuefu folk songs. The number of existing Chu songs and four-character poems is small, while the number of temple poems and five-character poems is slightly larger. Among them, some works of Chu songs and five-character poems are well written, and Nineteen Ancient Poems by Anonymous indicates that the literati's five-character poems have entered a mature stage.

Jian 'an Poets: A large number of writers in the late Eastern Han Dynasty, such as Cao Cao, Cao Pi, Cao Zhi, Cai Wenji and Han Danchun. With their frankness, they expressed their ambition to make contributions and set off the first literary creation climax in the history of China's poetry. Because it was the Jian 'an era of Emperor Xian of Han Dynasty, it was later called Jian 'an literature. Therefore, the writers of this period were called Jian 'an poets.

Nineteen Ancient Poems: Nineteen Ancient Poems is a collection of five-character poems written by ancient Chinese literati, compiled by Xiao Tong in the Southern Dynasties from nineteen unknown ancient poems handed down from ancient times. It is a remarkable symbol of the humanization of Yuefu ancient poetry, which profoundly reproduces the disillusionment and depravity pursued by scholars during the great social transformation period at the end of Han Dynasty, the awakening and pain of the soul, and expresses several basic and common feelings and thoughts in life. The language of the whole poem is simple and natural, the description is vivid and vivid, and it has a natural artistic style. It shows the philosophical artistic conception of the master and Confucianism everywhere, and is called "the crown of five words" by Liu Xie (Wen Xin Diao Long).

Seven Sages of Bamboo Forest: Seven Sages of Bamboo Forest refer to seven people, namely Ji Kang, Ruan Ji, Dan Tao, Xiang Embroidery, Liu Ling, Wang Rong and Ruan Xian, and are called the Seven Sages first. Because he often lived under the bamboo forest in Shanyang county (now Xiuwu area) at that time, drinking and singing freely, he was called the seven sages of the world, and later named the bamboo forest after the land name.

Landscape poetry: refers to poems describing landscapes. Although poetry is not necessarily purely about mountains and rivers, it may have other auxiliary contents, but the main purpose of poet's creation must be to present the beauty of mountains and rivers that can be heard by eyes and ears. Created by Xie Lingyun, it was born out of metaphysical poetry.

Metaphysical Poetry: A kind of poetry with the main content of explaining the philosophy of Laozi, Zhuangzi and Buddhism. Metaphysical poetry is not real poetry, nor real philosophy, but a hodgepodge of failures. Metaphysical poetry is one of the schools of poetry in the Eastern Jin Dynasty, which began at the end of the Western Jin Dynasty and prevailed in the Eastern Jin Dynasty. Representative writers include Sun Chuo, Xu Xun, Yu Liang and Huan Wen. Its characteristic is that Hyunri entered poetry, seriously divorced from social life, and Sun Chuo's metaphysical poetry is far less than Daolin's.

Yongming style: Yongming is the title of Emperor Wu of Qi in the Southern Dynasties. Yongming style is also called "New Style Poetry". This poetic style requires strict four tones and eight diseases, emphasizing rhyme and meter. The appearance of this poetic style has played a certain role in correcting the shortcomings of literati's poetic language since Jin and Song Dynasties and making the creation turn to fresh and smooth. It has a great influence on the formation of "modern poetry".

Official poem: I don't know. Is there something wrong?

Shangguanti is the first poetic title named after an individual in the history of Tang poetry. Refers to the court poems represented by Shangguan Yi in Longshuo period of Tang Gaozong. The theme is mainly to serve harmony, respond to the system and chant things, with vague content, paying attention to the formal skills of poetry and pursuing the beauty of poetry.

Palace-style poetry refers to the Eastern Palace in the Southern Dynasties when Emperor Jianwen and Xiao Gang were governors, with Chen Houzhu, Yang Di, Emperor Taizong and other palaces as the center. "Palace Style" refers to both the poetic style describing palace life and the poetic style formed in the palace, which began in Xiao Gang, Jian Wendi. When Xiao Gang was a prince, he often sang with literati in the East Palace. Its content is mostly palace life and affairs between men and women, but it pursues flowery rhetoric in form and is called "palace style". Later, he called erotic poems palace poems.