Read Edit View history 铁壁 tiěbì impregnable defense Origin Definitions Defs Strokes Stroke Words Sentences Sents Senses Add sense 铁壁/ 鐵壁 tiěbì impregnable defense an iron wall; used to describe a defense or fortification that is extremely solid and impossible to break through Edit Delete References Add reference classifier 铁壁/鐵壁 → 道/道 Edit Delete
铁壁/ 鐵壁 tiěbì impregnable defense an iron wall; used to describe a defense or fortification that is extremely solid and impossible to break through Edit Delete