一个美国人在中国做英文老师，和我妹妹在谈恋爱，他暂时不想回美国，想在国内和我妹结婚安家，这种情况下，我妹能申请绿卡吗？谢谢回答~！
-Her husband can file I-130 to one of the USCIS Offices in China for her after getting married, but she had better not apply for the immigraton visa until she and her spouse plan to live in US permanently. It is difficult to convince the VO to issue an immigration visa to you if you don't plan to move to US, and live there permanently, and even if you become a green card holder, it is very difficult for you to keep the green card validity if you don't live in US permanently.
See these links for I-130 filing:
