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

Sperable \Spe"ra*ble\, a. [L. spearabilis, fr. sperare to hope.]
   Within the range of hpe; proper to be hoped for. [Obs.]
   --Bacon.

Sperable \Sper"a*ble\, n.
   See {Sperable}.