Yes, after spending US dollars on visa card, you need to activate the function of purchasing foreign exchange, so that you can repay in RMB. There are three ways to activate the foreign exchange purchase function:

1. Take my ID card and credit card and open it in a branch of the credit card bank.

2. Call the bank customer service and open it through manual service.

3. Login to the credit card bank in official website.

Through the foreign exchange purchase function, the borrower only needs to deposit the corresponding RMB in the credit card, and the deposited repayment will be automatically converted into US dollars, giving priority to the cardholder's US dollar bill.