铜墙铁壁 tóngqiángtiěbì impregnable defense Definitions Defs Origin Strokes Stroke Words Sentences Sents 铜墙铁壁 銅牆鐵壁 tóngqiángtiěbì impregnable defense (idiom) copper wall and iron bastion; used to describe an extremely solid and indestructible fortification or defense Frequency Movie subtitles 0.150 per million appears in 0% of films Written text 0.504 per million Cross-References Classifier 道 dàoVariant of 铁壁铜墙 tiěbìtóngqiáng Sources Frequency data SUBTLEX-CHBCC Corpus (BLCU)
铜墙铁壁 銅牆鐵壁 tóngqiángtiěbì impregnable defense (idiom) copper wall and iron bastion; used to describe an extremely solid and indestructible fortification or defense Frequency Movie subtitles 0.150 per million appears in 0% of films Written text 0.504 per million Cross-References Classifier 道 dàoVariant of 铁壁铜墙 tiěbìtóngqiáng Sources Frequency data SUBTLEX-CHBCC Corpus (BLCU)
