It depends on which card type you have, Global Pass or International Card. Generally, this kind of dual-currency card can be settled in RMB, that is, you can purchase foreign exchange in RMB and repay in US dollars, or you can repay independently, and the foreign currency is in US dollars. When entering the account, any foreign currency will be converted into U.S. dollars at the current exchange rate, and there will be no currency conversion fee. Hope this helps you