可以去。 只要回来之前护照还有效即可。 4 r+ n0 V- F+ o& X% ?" r" p2 w; K3 i
- A passport, which must be valid until the date of expected departure from the U.S.; or! ]2 ^2 I( e; k: e; _, D x
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见官网:/ [! K7 W$ `5 b5 T http://travel.gc.ca/destinations/united-states#entryexit