| 单词 | 购买证明 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔POP〕Proof of purchase.购买证明美国传统〔proof-of-purchase〕A document, such as a sales slip or a product label, that is valid evidence for claiming a refund or a premium.购买证明：在要求退款或保险金时作为有效证据的单据，比如发票或产品标签美国传统〔proof〕Do you have any proof of purchase? (=something to prove that you bought and paid for something) 你有什么购买证明吗？朗文当代 |
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