她的妈妈和她的姐姐是老师求 英文翻译
问题描述：
她的妈妈和她的姐姐是老师求 英文翻译
答
Both her mother and her sister are teachers.
Her mother and sister are both teachers.Her mother and her sister is ateacher.这句话对吗不对的。A and B 为复数，故谓语动词用复数。