grandma 读音：英['ɡrænmɑː]，美['ɡrænmɑː] 释义：n.（口语）奶奶；外婆 例句：Grandpaandgrandmasatinthebackofthecar. 爷爷和奶奶......
grandma与grandmother都是祖母的意思.grandmother多用于书面正式语grandma[grandmom]多用与口语就好像dad与father, mom与mother的区别一样...
