回复：真正合法的双护照做法

来源: 于 2012-01-12 13:14:44 [旧帖] [给我悄悄话] 本文已被阅读：次

after canada and US share border crossing infomation, this way will not work anymore.

by the way, how do you keep your 加拿大绿卡 if you do not live there.