great-great-grandparent 英语 替代形式 great great grandparent词源 源自 great- + great- + grandparent。 名词 great-great-grandparent(复数 great-great-grandparents) 高祖父母;曾曾祖父母下位词 great-great-grandfather great-great-grandmother相关词汇 great-great-grandchild great-great-granddaughter great-great-grandson