父母拿到绿卡,后来回国,在中国待了快两年,现在想夏天来美国旅游,是不是绿卡就自动作废了,要重新申请美国签证?这种情况签证和入关时有什么需要特别注意的问题吗?谢谢老师
-Their green card has been void automatially. They need to abandon the green card, and then apply for the B2 visa to enter US. Check this link for abandoment of green card in China: (English version)
or (Chinese version):