本帖最后由 Coldhotdog 于 2013-7-15 19:10 编辑 ; u( _0 ^1 ?4 t( O( \4 K& ^7 m' |( X9 Y. f
You have to renew your visa each year, and you may lose your social security in Canada. Without a professional position in the US, you cannot stay in the States longer than the period a Canadian is allowed to stay as a visitor.