adj.未付款的；没有报酬的
The salesmen claim for back payment of unpaid commission . 推销员要求结清所欠佣金。
He's taken unpaid leave for a month. 他请了一个月的停薪假。
He's doing a month's unpaid work experience with an engineering firm. 他正在一家工程公司无偿工作一个月以获得工作经验。
