where we are?和 Where are we?有什么区别?可随便用吗?

题目

where we are?和 Where are we?有什么区别?可随便用吗?
原文：Of course,yes,I do feel in harmony with nature.But we've been sailing for a while now and I'm not sure where we are… Where are we,Neil?

答案

where we are 是可以作主语,宾语等的名词性从句
如：
He doesn't know where we are.他不知道我们在哪.
而 Where are we?是个疑问句 “我们在哪?”