What rhetorical devices are used in this sentence

What rhetorical devices are used in this sentence

Exaggeration: to enlarge or reduce the original appearance of objective things, but still feel real and reasonable. This kind of "exaggeration with faith" technique is called exaggeration. Dashan (Wuling and Wumeng) is said to be waves and mud balls, which is a narrowing exaggeration

”The back wave of the Yangtze River pushes the front wave, and one wave is stronger than the other“

The back waves of the Yangtze River push the front waves (CH á ng Ji à h à u l à ng Tu à Qi á n l à ng)
Explanation refers to the continuous progress of things. It refers to new people and new things instead of old people and old things

The waves behind the Yangtze River push the waves ahead, one wave is stronger than the other

Time make it impossible that in every profession, young men replace the old

Poems related to the back waves pushing the front waves of the Yangtze River?
Liu Yuxi has a poem, which has the same meaning as that one. What is it?

Bashan Chu water desolate place, 23 years abandoned
Reminiscent of the past, singing flute Fu in the air, turning it in the countryside like a rotten Ke man
Thousands of sails pass by the side of the sunken boat and thousands of trees spring in front of the diseased trees
Listen to your song today, with the spirit of a long glass of wine