老师,非常感谢如此快速的回复我,我现在已经回到了美国,广州领事馆那边告诉我说我孩子的文件会退回到美国,所以我想是不是可以在美国找律师提出申诉
-As I said above, you can not 提出申诉 because there is not immigration law you can use to support your申诉. The immigration law and US Government give the visa officer in the US Consulate outside US the abolute power to approve or deny a visa application of a foreigner and you have no right to 申诉 if your application is denied.
The only thing you can do is your child can apply for the immigration visa again later and you provde the evidences which is enough to convince the visa officer that your marriage is true, for example, the time of your marriage maintenance, your permanent green card (this is the most powerful evidence because that means USCIS have completely recognized your marriage is true), joint-tax return, joint-house onwer, joint bank account, joint-insurance account, joint-credit card account, etc.