经济贸易类包括哪些:是I don't know what is the matter.还是I don't know what the matter is.

是I don't know what is the matter.还是I don't know what the matter is. I don't know 是什么意思呀?????? why i don' t know 爵士乐i don t know I don't know you,and you even don't know me!什么意思 What if I don't know anyone 谁知道“I don't know”的中文意思啊 i don't know!!!有没有永恒的爱 I don't know . 的同义句是什么? i don't know all of them