书面凭证

【法】 written confirmation

书的英语翻译：

book; letter; script; write

面的英语翻译：

face; surface; cover; directly; range; scale; side
【医】 face; facies; facio-; prosopo-; surface

凭证的英语翻译：

certificate; credence; evidence; proof; voucher; warrant
【经】 credential; document; evidence; voucher