名词
中文翻译：Unknown
同义词：
['sample letter', 'sample letter', 'sample letter']
例句：
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1. Thecompany sent out a sample size letter to all employees last week.
上周公司向所有员工发送了一封样本大小信。
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2.The sample size letter included information about the upcoming event.
样本大小信包含了即将到来事件的相关信息。
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3. The sample size letter was used to gather feedback from customers.
样本大小信用于收集顾客的反馈。