These various options do offer a large degree of flexibility, but none of them offer very fine-grained control.

这些不同的选择确实提供了很大程度的灵活性，但它们中没有一个方法能够提供细粒度控制。

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To retain these productive women, wise employers should offer more flexibility, including part-time arrangements.

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These are "meta search" fare sites, and although they don't offer quite the travel date flexibility as some others do, they often include fares that the airlines sell only on their own websites.

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