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父母綠卡,小孩能否用出生證明進入加拿大或返回美國呢?謝謝!
-Yes if the child is < 16 and travel by land or sea. See:
http://travel.state.gov/content/passports/english/passports/information/do-i-need.html
http://www.tripadvisor.com/Travel-g153339-s602/Canada:Crossing.The.Border.html