本来我还想6月份回一趟中国的,机票都定了,这下还要改票和重新签中国签证。
-Then, you can go to China in June and come back with your spouse together on September 22, 2013 or later using the H-1 approval notice (your spouse get the H-1b I-94, you and your child get the H-4 I-94). Because all of you are Canadian citizen, you do not need to get the visa in the US Embassy.