我是公民，去年底申请父母绿卡，今年初收到补材料的信，要petitioner's birth
certificate。申请的时候竟然没寄这个，晕。。我就把我之前国内办的出生公证复印
寄了出去（就剩一份了只好复印了，以前我办绿卡公民都是用的这个原件）。都两个月
前了本来以为没事了，结果今天又受到一封DHS的信，要重寄：
Please submit a copy of the petitioner's birth certificate or alternately
hukou or "huji" for your family showing all the family members with
appropriate translation. The document previously submitted is not acceptable
as a birth certificate; it is only a translation.
在网上查都是父母的公证不管用要重补材料的。可父母是beneficiary，我才是
petitioner是吧？入籍了没有户口户籍了是吧，这要怎么办呢？
很着急，万分感谢！
