密不透风

mì bù tòu fēng

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Definitions

  1. 1. sealed off
  2. 2. impenetrable

Child Words of 密不透风

不
bù

no; not so

密
mì

secret

透
tòu

(bound form) to penetrate; to seep through

风
fēng

wind

透风
tòu fēng

to let air pass through; to ventilate