Just a credit card that supports dual currency. Generally anything with a visa or mastercard logo on it will do. What to do specifically depends on the actual situation of your career, and the handling methods are also different. If you are employed, you generally need proof of salary, proof of identity, etc. to apply for a credit card, and some require a certain deposit before you can apply. You'd better go to a bank or a roadside credit card salesperson for detailed consultation to see which card is suitable for you, but remember to apply for a dual-currency credit card.