Rhyme is a taboo in modern poetry writing and should be avoided as much as possible. But rhyme is not taboo in other forms of poetry, such as classical poetry, which happens from time to time, such as Du Fu's Du Fu's Du Fu:
There are azaleas in Xichuan but not in Dongchuan.
There are no azaleas in Fuwan, but there are azaleas in Yun 'an.
I have been to Jincheng to build a house by the water.
There is a hectare of bamboo with towering trees.
At the end of spring, the cuckoo came and mourned.
I often worship, but it is the soul of the ancient emperor.
Give birth to a bird's nest, and a hundred birds dare not be angry.
Still feeding his son, if the ceremony is supreme.
Hongyan and Lamb, courtesy is too old.
Fly to your knees, know life as gratitude.
The ancient laws of the sages have been passed down to later generations.
You look at birds and birds, but you still know cuckoo.
This spring, I have been ill for many years.
If you are sick, you can't worship, and tears are pouring down your face.
From a certain point of view, ancient style is modern poetry in classical Chinese format. Plain narration, random rhyme, random antithesis, random sentence length, random length. Therefore, ancient style and modern poetry are not taboo to emphasize rhyme.
Modern poetry, on the other hand, is dominated by quatrains and metrical poems, with few verses. Rhyme and rhyme foot are the same word, fixed at the end of disyllabic sentences. In this case, it is not only difficult to distinguish the front and back in tone, but also the same word in the same position has the same meaning. The repetition of this meaning will lead to the adjustment of the whole poem, and it is difficult to complete the "transition", that is, it is difficult to complete the starting point, rising, climax and ending of a whole poem.