Pronunciation: Yun Yun Hengtong

Interpretation: describe the barrier-free state of the development of things, all barrier-free.

Source: Sixty-five chapters of Lvyuan Li's "Qi Lu Deng" in Qing Dynasty: "That Kong Fangxiong used the technique of prosperity to cure Guan Ge's illness first."

Example: Lao She's "Four Generations under One Family": "He should tell Cheng Changshun to run away, and stop thinking about pulling a rickshaw and getting lucky."