"外婆" (wài pó) 的英文是 "grandmother"，来源是由 "grand" (祖母/外祖母) 和 "mother" (母亲) 拼接而成。
例句：
My grandmother pves in the countryside. (我的外婆住在乡下。)
She's very close with her grandmother. (她和她的外婆关系非常亲密。)
"外公" (wài gōng) 的英文是 "grandfather"，来源同样是由 "grand" (祖父/外祖父) 和 "father" (父亲) 拼接而成。
例句：
My grandfather passed away last year. (我的外公去年去世了。)
He's very close with his grandfather. (他和他的外公关系非常亲密。)