vouchers
n. 凭证( voucher的名词复数 ); 证人; 证件; 收据
A voucher is a ticket or piece of paper that can be used instead of money to pay for something.
The winners will each receive a voucher for a pair of cinema tickets.
获胜者每人将会获得两张电影票的代金券。
...gift vouchers.
礼券
These vouchers are redeemable against any future purchase.
这些优惠券将来购物均可使用。
Vouchers must be redeemed before September 14th so you'd better get cracking to cash in.
代金券必须在9月14日之前用掉,所以你最好快点。
This time we were given free vouchers to spend the night in a nearby hotel.
这一次我们得到了在附近一家旅馆入住的免费券.
Here are the keys, Registration slips and breakfast vouchers.
这是你们的房间钥匙 、 记表及早餐券.
But assigning the vouchers randomly guarded against this risk.
但随意分配补助则能够避免这种风险.