资料来源 : pyDict

黑玉色的,墨黑的

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Jet-black \Jet"-black`\, a.
   Black as jet; deep black.

资料来源 : WordNet®

jet-black
     adj : of the blackest black; similar to the color of jet or coal
           [syn: {coal-black}, {jet}, {pitchy}, {sooty}]