"the reason causing the problem is ..."应该是the reason for 还是

"the reason causing the problem is ..."应该是the reason for 还是 the reason for it is还是the reason for this is? explain the reason还是explain for the reason for the easy reason还是 the simple reason 是the reason for还是the.reason.why the reason for.sth what is the reason The reason for this is obvious What is the reason for ______there for the reason that/why for the reason的中文翻译 for the reason怎么用