Read Edit View history 密不透风 mìbùtòufēng airtight Origin Definitions Defs Strokes Stroke Words Sentences Sents 密不透风 (密不透風) mìbùtòufēng airtight sealed so tightly that no air or wind can pass through impenetrable strictly guarded, secretive, or packed so densely that nothing can get through Frequency Written text 0.525 per million Sources Definitions CC-CEDICT Frequency data BCC Corpus (BLCU)
密不透风 (密不透風) mìbùtòufēng airtight sealed so tightly that no air or wind can pass through impenetrable strictly guarded, secretive, or packed so densely that nothing can get through Frequency Written text 0.525 per million Sources Definitions CC-CEDICT Frequency data BCC Corpus (BLCU)