innumerable mountains and valleys
The Chinese idiom, Pinyin is Qi à NSH à NW à NH è, which means the mountains are continuous and overlapping. It comes from five poems about historic sites.
Notes on Idioms
Gully: gully.
The origin of Idioms
Du Fu of the Tang Dynasty wrote five poems on historical sites: "when you go to the gate of the capital from mountains and valleys, you can still grow up in a village."
Idiom usage
It is used to describe the precipitous terrain. Class, in the mountains of Fujian and Jiangxi! (Liang Xin's from slave to general, Volume 51)
innumerable mountains and valleys
the important thing is understanding - guì zài zhī xīn
feel as if a knife were piercing one 's heart - xīn rú dāo jiǎo