可能需要参数化记录集的场合和原因。

When and why you might want to parameterize a recordset.

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您可能需要更改距离参数或者高亮显示样式才能得到符合搜索条件的结果。

You may want to experiment with changes to the distance parameter or highlighting style to achieve results tailored to your searches.

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接下来您可能需要验证参数值，或者为丢失的参数指派默认值。

Perhaps then you will need to validate parameter values, or assign defaults to missing parameters.

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