angel小芋头
after-sales service售后服务 [简明汉英词典]after service退货 goods returned换货 goods exchanged
吃货阿呀
根据用的不同方式,可以有不同表达,以下都是比较地道,职业化的说法。refundable---可退货的exchangeable----可换货的refund unconditionally----无条件退货exchange unconditionally------无条件换货refund and exchange unconditionally----无条件退换货