What is the relationship between immigration, emigration and naturalization?

Actually, in many countries, naturalization ≠ immigration ≠ immigration. Generally speaking, as long as you have a permanent green card (permanent residence visa), you are an immigrant. However, the nationality after immigration is still China nationality, and only by voluntarily applying for immigration nationality and meeting all the conditions can you obtain local nationality. So immigrants ≠ naturalized, still China people. Getting a permanent green card means that you can enjoy all the social benefits like the locals. You can be said to be a China native who has the right to live there permanently. So even if you emigrate, you can still live, work and earn money in China. Traveling freely between the two countries, you can also enjoy the social welfare of both countries at the same time.