grandma是什么意思,grandma什么意思

我一直有个疑问,姥姥和奶奶都叫 grandma,那该怎么区分呢?
bill jones age : 12 family : grandpa, grandma, dad (a
aunt b. uncle c. grandpa d. grandma
this is my family. my grandpa is ____(old) than my grandma.
《牛津树》共读计划第一阶段 :no.24《hello grandma》你好,外婆!