grandparent

n.祖父母；外祖父母

grand total, grand tour, grand-, grand-dad (also grandad), grandchild, granddaughter, grandee, grandeur, grandfather, grandfather, grandmother, grandparent, grandfatherly, grandiloquence, grandiloquent, grandiose, grandiosity, grandly, grandma, grandmother, grandness, grandpa, grandson, grandstand, grange, granite, granny, granny (also grannie), granny flat, granny knot, grant, granted, granular, granulate, granulated sugar, granule, grape, grape-shot, grape-sugar, grape-vine, grapefruit, graph,