What is the four-word idiom to describe Taihang Mountain?

Mountains and mountains, mountains and mountains, front mountains, mountains and mountains, mountains and valleys are endless.

Explanation:

Gaoshan [chóng shān jùn lǐng]: A high and steep mountain. Also known as "mountain".

One mountain after another [céng luán dié zhàng]: refers to many steep peaks.

Qian Shan Wanhe [qiān shān wàn hè]: The mountains are continuous and the heights overlap.

Cóng shān jùn lǐng: Many tall and steep mountains.

Endless valley [wàn hè mián yán]: describes the ups and downs of mountains, with overlapping heights.

Source:

Mountains and rivers: Wang Jinxi's Preface to Lanting Collection: "There are mountains and rivers here; Maolin Xiuzhu. "

Mountain after mountain: Song, Lu Jiuyuan and Wang Ganzhong wrote: "Between the abbot's eaves, there are mountains and mountains, which are endless, and they are dozens of miles near and hundreds of miles away, competing for wonders."

Qian Shan Wanhe: Five Historical Monuments by Tang Du Fu: "Mountains and rivers belong to Jingmen, and Mrs. Guang was born in the village where she grew up."

Cong Shanshan: Wu Yunduo's "Give Everything to the Party in the Mine": "The aerial ropeway in the coal mine crossed the mountain."

Endless Valley: Tang Du Fu's five poems about historical sites: Wanzhongling Valley is near Jingmen, and Mrs. Guang was born in the village where she grew up.

Usage:

Mountain: used to describe a tall and steep mountain. Generally used as subject, object and attribute.

As attribute and adverbial; Describe the overlapping mountains and connected peaks.

Maeyama Wanhe: United; As subject and object; Describe the steep terrain

Mountain and mountain: combination; As subject, object and attribute; Groups of mountains

Endless valley: Combined type; As adverbial and object; Describe the steep terrain