If you stay within USA until getting your green card,

来源: 于 2007-10-18 10:30:57 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

( usually need take 6-7 years or longer ),should be fine.Usually you can't get new non-immigration visa
in future,so if you leave the country, it's difficult to come back,except you have got your green card.