Dear Mr/Ms,
   
    Last Friday, when we were discussing the problems of defective containers.You suggested that I simply mail you a report each month on the number of return by customers rather than send the defective containers to you.

    I plan to put this into effect at once. But, I first want to make sure that I understand you correctly. If I don't hear from you within the coming week, I'll assume that you approve.
   
    Yours faithfully
   
尊敬的先生/小姐：
   
上周五，我们讨论了次品集装箱的问题，你建议我只需把顾客每月退回的次品集装箱的数量写个报告给你，而不是直接退集装箱。

我计划立即付诸现实。但我想确认我理解正确，到下周为止，如我不能收到你的来信，我即认为你没有异议。

    　你诚挚的