先生是公民在中國工作,我是綠卡,如何隨先生常駐中國又不失去綠卡
-You have to have reentry permit as any other green card holders do if you want to stay outside US for >1 year <2 years. Also, if you continously stay outside US for >6 months, your physical presence for the US citizenship application probably will be disrupted.