高城深堑 (高城深塹) gāo chéng shēn qiàn

gāo chéng shēn qiàn set phrase high walls and a deep moat; a solid defense
Domain: Idiom 成语
Notes: (Guoyu '高城深塹')

Word is mentioned most frequently in

Truncated for common words

• Scroll 1 Commentary on the Hundred Treatise 百論疏 — count: 1