[] an improvement or an extra feature that is added to a product or service to make it more useful and attractive to buyers附加价值；增值◆E-commerce will work only if it can offer users added value.电子商务只有为用户带来增值时才能发挥作用。◆Mobile phone users are prepared to pay each month for added-value services.移动电话用户愿意每月付费享用增值服务。 () the amount by which the value of a product increases at each stage of the production process, not including the cost of the basic materials（产品的）增值额SYNvalue added