In order to make their children's life more convenient abroad, parents generally办理a Visa or Master international credit card for them before they go abroad to study. International cards have various credit limits, and if you put money on the card, you can use it to spend directly abroad. Most banks offer international cards that are dual-currency credit cards containing Renminbi and US dollars. Some banks also offer cards in other currencies such as Pound Sterling cards, Yen cards, and US Dollar cards.