收到485的通知如下，去查了case status, 说是"case approval was reaffirmed and mailed back to department of state". 不知通这是怎么回事，到底是批准了没有，我应该怎么应对啊 ？
Your Case Status: Post Decision Activity
On October 22, 2015, the Department of State returned your case, Receipt Number LIN, to us for further review and we mailed you a notice affirming our original approval. Please contact the Department of State directly for any further information on your case.
For approved applications/petitions, post-decision activity may include USCIS sending notification of the approved application/petition to the National Visa Center or the Department of State. For denied applications/petitions, post-decision activity may include the processing of an appeal and/or motions to reopen or reconsider and revocations.