鄰居是一對上海人，老太太已經加入美國籍，老漢綠卡。最近，老漢在美國呆膩了，堅決想回國，他們問：能夠放棄美國籍，恢複中國籍嗎？
-Abandonment of US citizenship can be done in one of the US Consulates in China (only can be done outside US). Just contact the US Consulate in China for the procedure. Once she gives up the US citizenship, she will not get it again. Techincally, she can reinstate their Chinese citizenship after she gives up her US citizenhsip, but I don't know the extact procedure. They may contact 當地公安部門 to see how to reinstate the Chinese citizenship. However, this is serious issue, so before she gives up her US citizenship, she had better know whether she can reinstate her Chinese citizenship and know how to do it.
Another choice is that she may try to see whether she can get the Chinese permanent residency ("Chinese green card") and it seems it may be doable for old Chinese-American like her.
