A coupon offering two items, especially tickets for a play, for the price of one.
两件的票券提供两件的票券,尤指用一张票的价格购买的两张戏票
I have a coupon for ten pence off a packet of soap.
我有一张优惠券,买一盒肥皂可以便宜十便士。
This coupon can be redeemed at any of our branches.
这种息票可在我们的任何分行兑现.