回複:非常感謝haha_1000的解答. 我仍然有些疑惑?

1.If you apply for GC using category,you have to wait at least 4 years at current processing time.
2.If you apply for GC using your 配偶,you at most wait 2 years.I know a person.After he get a green card,he apply for GCs for his wife and four kids in China.It only took them 15 months to get Green Cards.

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