Alone
Isolated city, a Chinese idiom, Pinyin is d ā Nb ī NGG ū ch é ng, which means that the army and its garrison are isolated, weak and without foreign aid. It comes from the biography of Geng Gong in the book of the later Han Dynasty.
Notes on Idioms
Single soldier: a weak and helpless army; isolated city: an isolated and helpless city.
The origin of Idioms
In the biography of Geng Gong in the book of the later Han Dynasty by Fan Ye of the Southern Dynasty, it is said that "Geng Gong defended the isolated city as a single soldier, and when he was the charge of the Xiongnu, he was tens of thousands of people."
Idiom usage
Used as an object or attribute; used in war, etc.
Alone
have a well-thought-out plan , stratagem , etc. - xiōng yǒu chéng suàn
appear to be tough outwardly , be timid inwardly - sè lì nèi rěn