It depends on whether you are in Taiwan or the mainland. If you are in Taiwan, if your credit card is a Hong Kong, Macao and Taiwan credit card, then you can just pay the Taiwan dollar directly. If you are in the mainland, if your credit card is a Hong Kong, Macao and Taiwan credit card, it will have Taiwan dollars and name currency. For two accounts, there are corresponding exchange rates, and you can use either account. If it is just an ordinary single-currency credit card, you need to go to the bank to exchange the required currency for repayment