brass hills and iron walls

brass hills and iron walls

Tongshan Tiebi, a Chinese idiom, Pinyin is t ó ngsh ā NTI ě B ì, which means to describe a solid defense. It refers to a strong person who can be trusted. It comes from the biography of Li Boyu in the history of Song Dynasty.

The origin of Idioms

According to the biography of Li Boyu in the history of the Song Dynasty, "Zhao Ruteng tried to recommend eight scholars, each with its own items. Yu Boyu said:" Tongshan Tiebi. " Li Chao Feng Festival is very similar. "

Idiom usage

If you are afraid of fear, it will be useless to have iron walls. (the second book of biography of Liu Yi by Shang Zhongxian in Yuan Dynasty)