回复：再问用AP回国的问题...

来源: 于 2007-12-10 15:39:35 [旧帖] [给我悄悄话] 本文已被阅读：次

Just the white one gives to the person who help you to check in at the airport, the green one keep it for yourself. You need the green one for immigration when you come back to the United States. I traveled many times already.