天真的人可能会首先确定客户的最大订单id，然后使用这个id来检索送货人和订单日期。

Naively one would first determine the maximum order id for the customer and then use this id to retrieve the carrier and the entry date.

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Jon：日期和时间一直是最大的问题。

Jon: Dates and times have been our biggest problem.

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虽然日期的变化最大的雪水，一年到现在的平均融雪到来之前两周半比1961年10月30日，当峰融雪首次测量。

While the date of maximum snowmelt varies from year to year, peak snowmelt now arrives an average of two-and-a-half weeks earlier than it did in 1961, when peak snowmelt was first measured.

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