Teacher 8,
If I decide to move back to China and work there permanently, should I continue to maitain my PR status or simply join the US citizenship? Could you please offer me some advices and comparisons? Thanks a bunch!
-To maintain your PR status, you need to meet the requirment for this maintenance, e.g. you can not stay outside US continuously for > one year unless you have renery permit which allow you to stay outside Us for > 1 year < 2 years.
If you are a US citizen, you can stay outside US as longer as you want to, but you may need the Chinese Government permission to work and long-time stay.
You need to make this kind of decision by yourself.