英语：What's his family name.

英语：What's his family name.
英语：What's his family name.

英语：What's his family name.
翻译：他姓什么?
回答：His family name is Green/ Black 等

他姓什么

What's his family name?
这是一个一般疑问句。中文意思是：“他姓什么？”
family name就是“姓”的意思。
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假如问题是what's his name？那么中文意思就是“他叫什么名字？”回答的时候可以说出全名或只是名字。

你问什么？意思是：他家人的名字叫什么