to repay the USD bill, the function of purchasing foreign exchange for repayment can be enabled. After successful processing, if you also set the automatic deduction function, the system will automatically deduct the corresponding amount from the associated card for repayment by default on the last repayment date based on the selling price of US dollar cash announced by China Merchants Bank. You can also make repayment in RMB after billing in USD, and we will settle the account according to the selling price of USD cash announced by China Merchants Bank on the day of your repayment.