本帖最后由 Coldhotdog 于 2013-7-15 19:10 编辑 " P0 m$ L$ D. J( m5 Y( Y1 w
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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.