I don't know that he comes from America.是什么句型?

问题描述:

I don't know that he comes from America.是什么句型?
虽然没有悬赏,但求求你了谢谢

I don't know that he comes from America.
是含宾语从句的主从复合句.
主句:I don't know.
宾语从句:He comes from America
整句翻译:我不知道他来自美国.