密不通风 mìbùtōngfēng airtight Definitions Defs Origin Strokes Stroke Words Sentences Sents 密不通风 密不通風 mìbùtōngfēng airtight be so closely packed or sealed that no air can pass through; also used to describe a tight security or defense that is impossible to penetrate Frequency Written text 0.032 per million Sources Frequency data BCC Corpus (BLCU)
密不通风 密不通風 mìbùtōngfēng airtight be so closely packed or sealed that no air can pass through; also used to describe a tight security or defense that is impossible to penetrate Frequency Written text 0.032 per million Sources Frequency data BCC Corpus (BLCU)
