Only cash or credit card (VISA or MASTER) can be used abroad. The credit card must be used by the person himself and cannot be borrowed, including from his parents. I have worked in management in shopping malls abroad and have also been responsible for training cashiers. So I understand that some people in China do not use signatures (there is no signature on the back of the credit card), but choose to use passwords. If this kind of credit card is re-borrowed, it will not be discovered because the password is entered when paying. However, if this kind of credit card is stolen, the bank will We are not responsible for compensation. Most of them use signatures. This means that you must use it yourself. Otherwise, unlike the signature on the back, the cashier cannot accept it. If he accepts it, he will be responsible for compensation if something goes wrong. Also, if you use a credit card abroad, the handling fee is quite high. It is recommended to use cash. Also, if you must use a credit card, for example, if you want to buy a bag that costs 500 euros, it is recommended to find an ATM nearby and use your credit card to withdraw cash first. Purchase, because the handling fee for purchasing goods directly with a credit card is higher than the handling fee for withdrawing cash from an ATM. I asked the bank about this and also checked my bank consumption records when I went abroad in the past.