The first sentence of each couplet is called antithesis, and the next sentence is called antithesis. Metric poems are twice as big as quatrains, so you can write more things or scenes and express more detailed emotions. "scattered in the whole, often changed, neat and tidy, and rich in content"; "The five laws are short, straightforward and powerful, and the seven laws are smooth, melodious and elegant. Rhyme is not only flat and rhyming, but also antithetical and difficult to write. "
Extended data
The development background of metrical poetry
Rhyme is a popular poetry genre in Tang Dynasty and later. There are always eight sentences in a regular poem, 56 words in a seven-character regular poem and 40 words in a five-character regular poem. Its meter is very strict. According to the number of words in each sentence, it can be divided into five-character meter poems and seven-character meter poems: a five-character meter poem has five words and a seven-character meter poem has seven words; According to the length of space, it can be divided into general "metrical poems" and "parallel poems" (or long poems)
In addition to five-character and seven-character metrical poems, there is also a special kind of metrical poem called "Xiaoyun", "Sanyun" or "Sanyun". In terms of rhyme, the second, fourth, sixth and eighth sentences must rhyme, the first sentence can be put on or off, and the third, fifth and seventh sentences cannot rhyme.
The literary works of the Northern and Southern Dynasties pay attention to duality and levelness, which has a far-reaching influence on the development of rhythmic poetry. During the reign of Yongming in the Southern Qi Dynasty, Zhou Qing and Shen Yue founded the theory of four tones and eight diseases. As far as influence is concerned, poets at that time paid attention to rhythm in their poems, which was called "eternal style" internationally, and was an important bridge for the transition from ancient poetry to modern poetry.