Please attach the correct stamp before sending these invoices to our overseas clients.

寄這些發票給海外客戶之前，請先貼上正確面額的郵票。

The front desk sells stamps, so guests can mail postcards directly from the hotel.

櫃檯有販售郵票，房客可以直接從飯店寄出明信片。

Our mailroom ran out of stamps, so the contracts will be shipped tomorrow morning.

我們收發室的郵票用完了，所以合約要明天早上才會寄出。