Cách sử dụng
Barter is the exchange of goods or services for other goods or services without the use of money. For example, a farmer might exchange some of his produce for clothing from a tailor, or a teacher might exchange tutoring services for repairs on her car. It can be used in situations where people don't have access to money, or prefer to exchange goods or services directly instead of using money. It's a way to trade things that you have for things that you need or want.