Ordinary, ordinary, ordinary.
Just plain, just plain.
Very flat, very flat.
Flat and light.
No matter how you change the seven-character modern poetry, you can't recognize these four basic sentence patterns. Interactive combination. Every sentence has two two-tone steps and one-tone step. The flat tone of the second tone in every two steps is used alternately, commonly known as two, four and six distinct. In this way, it constitutes the ups and downs of this poem. As for the choice of words, the arrangement of flat lines in the sentence is more rigorous. The so-called "sentence has definite words and words have definite sounds", but the parallel arrangement in the sentence is basically formed by the interaction of two words as a step.