Hello, as long as you see the logo of Visa, MasterCard or JCB on your dragon card, you can directly swipe US dollars. Then they will charge in dollars. If you want to return the US dollar, there are three situations: 1. Cash back to dollars directly. 2. Binding CCB savings card for automatic repurchase and repayment. 3. Deposit the full amount of RMB into the credit card, and call customer service to apply for foreign exchange purchase on the day of deposit. Remember, be sure to call back on the day of RMB withdrawal. If you don't call on the same day, the repayment will be made to the RMB account, and you will have to deposit again if you can't get the US dollars.

In addition to the above three cards, CCB also has a European travel card with the logos of VISA and MasterCard on it, but this card is in euros. If you use this card to swipe US dollars, there will be an exchange fee of 1.5%. In addition, CCB's platinum card and a new card are called global payment cards. These two cards can be swiped directly regardless of any country and currency, and will be automatically converted into RMB at last. You only need to pay back RMB, and there is no exchange fee. These two cards are most convenient.