Definition: the name that you and other members of your family all have Level: A2
在中国，夫妻通常共用丈夫的姓氏。
In China, couples usually share the husband's ___surname.
在正式场合，我们通常用姓氏来称呼对方。
In formal situations, we usually address each other by their ___surname.
我的姓氏是史密斯。
My ___surname is Smith.
