1, number of lines and words. The number of lines in a poem is not fixed, but the number of words in each line should be consistent, usually between 5 and 7 words.
2. Punctuation. Punctuations in poetry are rarely used, usually only common symbols such as commas, periods, question marks, etc. The use position of punctuation is also flexible and can be increased or decreased according to needs.
3. Rhythm and rhythm. Rhythm and prosody are one of the important features of poetry. Usually the same rhyme is used at the end of the poem, and the whole poem keeps the same rhythm to enhance the musical beauty and rhythm of the poem.