Cách sử dụng
The word "card" can refer to a small rectangular piece of paper or plastic with information, such as a playing card, business card or credit card. It can also refer to a physical object used to convey a message, such as a greeting card. In addition, "card" can also be a verb, meaning to write or make a card, or to charge or deduct something (such as money) from a card or account.