空中烏雲密佈。

The sky is full of dark clouds.

The sky is covered in black clouds.

Source: Tatoeba

Sentence Composition

1 空中 kōngzhōng
  1. in the sky
  2. in the air
2 烏雲 wūyún black cloud
=3 密 Mì
  1. surname Mi
  2. name of an ancient state
=3 密 mì
  1. dense; close; thick
  2. intimate; close
  3. (bound form) secret; confidential
  4. (Internet slang) to send a private message to (sb); to DM
4 佈 bù
  1. variant of 布 bù
  2. to announce
  3. to spread