Deep wall

Deep wall

Chinese idiom, Pinyin is sh ē Nb ì g ù L ě I, which means deep trench and high fortress; deep trench and high fortress; refers to solid fortification. It comes from the biography of CAI Bao in the book of Jin.

The origin of Idioms

According to the biography of CAI Bao in the book of Jin, "Yidun's army is located in the deep wall. It will not be able to enter the army until autumn."

Analysis of Idioms

Deep ditch and high base

Idiom usage

It is used as subject, object and attribute.