黑盒 hēi hé

black box; fig. system whose internal structure is unknown

Word data

HSK Not in HSK
Frequency Unknown

Definitions

  1. 1. black box
  2. 2. fig. system whose internal structure is unknown

Characters

Character Meaning
黑 hēi HSK 2
black; dark; illegal
盒 hé HSK 4
small box; case