a voucher for [something]
She received a voucher for a free haircut.
她收到一张免费理发的代金券。
代金券；兑换券；为他人或陈述的正确性作担保的人；收据。；作为某项支出的证明文件；担保的人或物。
a person who vouches for another or for the correctness of a statement
这里指担保或作证的人，而非代金券、凭证。
代金券；兑换券
A piece of paper or other token that entitles the holder to a discount, or that can be exchanged for goods and services.
为他人或陈述的正确性作担保的人
someone who vouches for another or for the correctness of a statement
收据。
A receipt.
作为某项支出的证明文件
a document that serves as evidence of some expenditure
担保的人或物。
One who or that which vouches.
可分离并根据需要兑换的可流通凭证
a negotiable certificate that can be detached and redeemed as needed
广告发布证明
A copy of a published advertisement sent by the agency to the client as proof of publication.
My neighbor agreed to be a voucher for me when I applied for the library card.
我申请借书证时，邻居同意做我的证明人。
用法提示：voucher 是可数名词，指为他人作证或担保的人，在句中作表语。
During the recruitment process, his former teacher acted as a voucher for his honesty.
招聘过程中，他以前的老师为他的诚实作了证明人。
用法提示：voucher 在句中作宾语补足语，表示担任证明人角色，后接 for 引出所证明的品质。
Her old colleague served as a voucher for her work experience in the job application.
在她的求职申请中，她的老同事为她的工作经历做了证明人。
用法提示：voucher 作为名词，指提供担保或证明的人，用于 serve as a voucher for 结构。
She received a voucher for a free haircut.
她收到一张免费理发的代金券。
He used a voucher to buy the book.
他用一张代金券买了这本书。
动词用法较正式，常见于书面语。
The expert vouchered the authenticity of the painting.
专家证实了这幅画的真实性。
更侧重于目睹或亲自证实，多用于法律或事实陈述；而voucher强调担保或保证某人可靠。
更常用于财务或合同担保，强调法律责任；voucher更泛指出具证明或担保的人。
常用于商业或广告，强调公开支持；voucher侧重证明可靠性而非推广。
grammar · medium
易错句子I need voucher to get discount.
正确表达I need a voucher to get a discount.
学生常忽略可数名词前需要加冠词；'voucher'为可数名词，因此应有不定冠词'a'。
grammar · medium
易错句子She vouchers for his identity.
正确表达She vouches for his identity.
'voucher'作为动词不标准，正确动词是'vouch'，搭配介词'for'表'担保'。
礼品券
I received a gift voucher for my birthday.
我生日时收到了一张礼品券。
旅行代金券
She used a travel voucher to book the hotel.
她用一张旅行代金券预订了酒店。
兑换代金券
You can redeem this voucher at any store.
你可以在任何一家商店兑换这张代金券。
代金券代码
Enter the voucher code at checkout to get a discount.
在结账时输入代金券代码即可获得折扣。
餐券
Employees receive a meal voucher each shift.
员工每班次会收到一张餐券。
与代金券类似，通常用于折扣或优惠
正式证明文件，如礼品证书或抵用券
可兑换商品或服务的符号性凭证
购买凭证，有时可作兑换凭证
商店信用额度，类似代金券
Dictionary facts from ECDICT, WIKTIONARY.