The supplier agreed to lower the unit price if we order over five hundred units.

供應商同意，如果我們訂購超過五百件，就調降單價。

Please confirm the final price with the customer before sending the invoice.

寄出發票前，請先和客戶確認最終價格。

Hotel prices in the city usually rise sharply during the annual trade fair.

每年商展期間，該市的飯店價格通常會大幅上漲。