Customers who buy the printer before May 31 can claim a $50 mail-in rebate.

在5月31日前購買這台印表機的顧客，可申請50美元的郵寄退款。

Please submit the rebate form with your original receipt to the finance department by Friday.

請於週五前將退款申請表連同收據正本交給財務部。

The hotel offers corporate guests a 10% rebate on rooms booked for conferences.

飯店為預訂會議住房的企業客戶提供10%的退款回饋。