资料来源 : pyDict

孙,外孙

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

Grandchild \Grand"child"\, n.
   A son's or daughter's child; a child in the second degree of
   descent.

资料来源 : WordNet®

grandchild
     n : a child of your son or daughter
     [also: {grandchildren} (pl)]