“优惠券”常见的英文表达是 coupon ,读音为英 [ˈkuːpɒn] 、美 [ˈkuːpɑːn] 。例如:
I have a coupon for this restaurant, so we can get a discount.(我有一张这家餐厅的优惠券,所以我们可以打折。)
You can use this coupon to buy one and get one free.(你可以用这张优惠券买一送一。 )