确保结果与预期一致，并且具有正确的列。

Make sure that the results are as expected and that they have the correct columns.

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这段代码确保结束日期至少在开始日期的一周之后。

End date must be at least one week after the start date.

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这段代码确保结束日期至少在开始日期的一周之后。

End date must be at least one week after the start date.

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