. Later they discovered, __what___ was news to him, that Pamela was the headmaster’s daughter.

问题描述:

. Later they discovered, __what___ was news to him, that Pamela was the headmaster’s daughter.
怎么翻译,谢谢,帮我划分一下句子成分

later 时间状语
they discovered that Pamela was the headmaster's daughter 主谓宾句子,主语是they ,谓语是discovered, 宾语是个宾语从句that Pamela was the headmaster's daughter
what was news to him 这其实是个状语补充句,强调是这件事本身对他们来说的意义