回复：你没说清楚你的美国B2签证是否多次往返的？还有就是如果过期了，

来源: 于 2010-05-20 11:44:57 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

No matter whether the B2 visa multiple entries, the B2 visa is invalid as long as you are still in U.S. after your B2 I-94 expired without extension of status(unlawyful presence).