A mother and father have 7 daughters,and each daughters has 1 brother

问题描述:

A mother and father have 7 daughters,and each daughters has 1 brother

一对父母有7个女儿,而且每个女儿有1个兄弟。
哈哈,实际上是8个孩子。7姐妹的兄弟都是共通的

一对夫妻有七个女儿,每个女儿都有一个兄弟

一位母亲和一位父亲有7个女儿,每个女儿有一个兄弟