| 单词 | product sample |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔mailing〕A very effective mailing of product samples was carried out last year.去年产品样本邮寄效果非常好。朗文当代They offered free product samples in return for customer feedback.他们用免费的产品样本来换取客户的反馈信息。牛津商务 |
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