What does it mean that the sea on the bamboo branch is depressed and the wind blows the mountain corner?

It means that the wind blowing from the water makes the bamboo branches fall and rise again, and the ridge with dark clouds is clearly destroyed.

Sea pressure, described as a sudden rainstorm, is like a sea tilt, bamboo branches are depressed in Shanghai, the wind blows the mountain corner, and the vast area is full of clouds and torrential rain.

From "Watching the Rain", the mountain guest can't understand the dragon bell, and the porch sits in danger and watches the rain. The front river and the back ridge are covered with clouds, and thousands of valleys and forests send rain. The bamboo branches are depressed in Shanghai, and the wind blows the mountain corners. It is a portrayal of the subversion and relocation of the whole country at that time. It not only writes about the rain scene, but also writes about the current situation. The supreme ruler did not carry out strong resistance, which led to the nomads from the mountains.