铁壁 tiěbì impregnable defense Definitions Defs Origin Strokes Stroke Words Sentences Sents 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 Frequency Written text 0.190 per million Cross-References Classifier 道 dào Sources Frequency data BCC Corpus (BLCU)
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 Frequency Written text 0.190 per million Cross-References Classifier 道 dào Sources Frequency data BCC Corpus (BLCU)
