n. 代金券，票券；收据，凭单；证人，保证人，证明者 v. 证实……的可靠性 复数 vouchers 第三人称单数 vouchers 现在分词 vouchering 过去式 vouchered 过去分词 vouchered noun [C] : Countable noun: a noun that has a plural. a piece of paper that can be used to pay for particular goods or services or that allows you to pay less than the usual price for them: The voucher is valid between July and December and entitles you to ten percent off all overseas flights.