My girlfriend is now an American green card. How to apply for immigration to the United States, and how long will it take?

The application can be submitted to the US Embassy in China, but it is more likely to be approved in the United States. There are two ways to apply for a green card under your current conditions. One is to take a green card as a job, and the requirement is to work full-time in the United States for five years (Britain will change it to ten years, and the United States may change it). The other is to marry your girlfriend and get a green card after five years of marriage. But I recommend the first one, because a gentleman naturally has to earn his own living. Is it more glorious to get an American green card by your own ability than by your girlfriend? Besides, within five years of marriage, you will feel bound by others. At least I know some women who marry foreigners. They are helpless and always compromised by the threat of divorce, but they are often abandoned in the third or fourth year. Of course, I'm talking about foreigners, which is a negative example. At present, I am in the UK, but I suggest that you immigrate to Canada after you get an American green card. Canada will not be as serious and boring as Britain, nor will it be as free and have a high crime rate as the United States. You can spend hundreds of dollars to hire an intermediary to do it. They know much more than we do.