资料来源 : pyDict

上爪,假蹄

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

Dewclaw \Dew"claw`\, n.
   In any animal, esp. of the Herbivora, a rudimentary claw or
   small hoof not reaching the ground.

         Some cut off the dewclaws [of greyhounds]. --J. H.
                                                  Walsh.