回複：回複：No. Must apply for it in US.

來源: 於 2013-09-20 15:48:47 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

So if my parents stay in China over 1 year, when they come back to US, their green card will be 作廢，是嗎？
-Correct.


他們會在入關時被返回嗎？
-It is possible.

還是需要簽證？
-Had better give up the green card in a US Consulate in China and then apply for a B2 visa to enter US in this case.