Subclass 155 Resident Return visa
You might be able to be granted this visa if you:
have spent a period totalling two years in the last five years in Australia as either an Australian permanent resident or citizen (the 'residence requirement').
（后面写的没注满两年怎样怎样的，我们就先不关心了）
然后是关于到底给几年rrv，以及从何时算起：（之前比较担心如果在澳洲境外申请的话，会不会rrv从你当初离境日期算起，但看下面这句话的意思不是那样的，而是从rrv下签那天算起）
Travel facility
If you have lived in Australia for at least two years of the past five years and are granted a Subclass 155 Resident Return visa it will have a five year travel facility from date of grant.