insurmountable
The Yangtze River Valley is a Chinese idiom. Its pinyin is ch á ngji à ngTi à nqi à n, which means that the Yangtze River is a natural and dangerous valley. In the old days, the terrain of the Yangtze River was dangerous and insurmountable. From the biography of sun fan in southern history.
The origin of Idioms
According to the biography of sun fan in the southern history, the Sui division's generals helped the river, and the officials asked them to guard against it. Fan Zou said, "the Yangtze River is a natural moat. It's dangerous since ancient times. How can the captured army fly across?"
Analysis of Idioms
Yangtze River natural danger
Idiom usage
The Yangtze River occupies eight counties in the south of the Yangtze River. It is much worse than the west of the Huaihe River. (the 110th chapter of Water Margin by Shi Naian of Ming Dynasty)
Chinese PinYin : cháng jiāng tiān qiàn
insurmountable