It can be used. There are signs on the POSE machines where credit cards are swiped. It can be used as long as you have visa or UnionPay. In Italy, you can basically use visa.

Reminder: The currency of visa transaction The first is U.S. dollars. When you repay the loan, you have to pay back U.S. dollars, or you can also pay back the equivalent value in RMB to purchase foreign exchange