Please return any unused office supplies to the storage room by Friday afternoon.

請在週五下午前把未使用的辦公用品歸還到儲藏室。

Customers may request a full refund for unused tickets within thirty days of purchase.

顧客可在購買後三十天內申請未使用票券的全額退款。

The warehouse still holds two hundred unused shipping boxes from last month's order.

倉庫裡還有兩百個上個月訂購、尚未使用的運輸紙箱。