资料来源 : pyDict

血色;乐天;乐观

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

sanguinity \san*guin"i*ty\, n.
   The quality of being sanguine; sanguineness. --Swift.

资料来源 : WordNet®

sanguinity
     n : feeling sanguine; optimistically cheerful and confident
         [syn: {sanguineness}]