Depression refers to the deep meaning of the article, and depression refers to the ups and downs of feelings, tone and syllables.
For example:
The endless trees are rustling leaves, and the Yangtze River is rolling unpredictably. (ups and downs of tones and syllables)
Leaves, boundless, swirl, rustling down; The flowing Yangtze River is surging and rolling forward. Zhuan Xu is a famous sentence throughout the ages. It is written about the solemn and bleak and vast scenery in autumn, which is scattered when you look up and down. "Boundless" magnified the appearance of fallen leaves, and "rustling" accelerated the speed of falling. While writing the scenery, I deeply expressed my feelings and conveyed the feeling that my youth is fleeting and my ambition is hard to pay. Its realm is magnificent, and its touch on people is not limited to the sadness at the end of the year, but also reminds people of the disappearance and limitation of life and the infinity and eternity of the universe. Through the gloomy and sad dialogue, it shows the poet's superb brushwork and has the majestic momentum of "building a raft and walking on a banyan tree", which is praised as "unique in ancient and modern times" by the predecessors who "pay attention to the East".
There are tens of millions of buildings in Ande, which greatly protect all the smiles of the poor in the world, and the wind and rain are as quiet as mountains. Oh! When I suddenly see this house in front of me, I will freeze to death alone! (The profound implication of the article)
How can we get a spacious and tall house in Qian Qian, and generally protect the poor in the world, so that they are all smiling and stable, and will not be shaken by the wind and rain? Alas! When such a towering house appears in front of me, I will freeze to death even if my hut is blown apart!