added value
noun [ U ] uk/ˌæd.ɪd ˈvæl.juː/ us/ˌæd.ɪd ˈvæl.juː/
(使某物增值的)改进;附加功能;附加物;附加价值
an improvement or addition to something that makes it worth more
The printer's added value makes it worth the extra cost. 这种打印机的价格贵一些,但是其附加功能使它物有所值。