-She needs to change her address for her N-400 case in this website:
https://egov.uscis.gov/coa/displayCOAForm.do
Then, follow up by calling USCIS a few days later to make sure the address has been updated in the system a couple of days later. After that, she had better visit the local USCIS Office near your home to see whether and when the reschedule can take place.
要不要重新申请?请老师指点一下。谢谢!
-Not need to reapply for it unless the case has been denied.