請問，如果再次回來時超過半年，會不會在機場被拒絕入關？她的綠卡會不會失效？現在有什麽補救的辦法？她治病的情況很難允許她在超過半年之前回美國一趟再回中國繼續治療。
-Bring the evidence of her illness such as hospital bills, Dr. certifiation letter/diagnosis and explain it to the CBP officer (if asked) and I think she will be fine.
事關重大，鞠躬多謝各位朋友了！
