「チケットに関する英語表現」
➊有効期限 expiry date - This milk has an expiry date, so we must drink it soon.
➋有効期間 validity, validation period - You have to validate this special offer by next month.
❸値段を下げる、安くする　price down / down price - The prices went down after 8 pm.
❹割引する　give a discount - The shopkeeper gave me a discount of the food.
❺伸ばす　extend - I bought an extended warranty for my computer.