但在行为现代的、最近50000年的人类中，文化变化的速度繁忙得多了。

But among behaviorally modern humans, those of the last 50, 000 years, the tempo of cultural change has been far brisker.

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最后，在这些变化的速度在现代社会中的地位是另一代人之间的差距的原因。

Finally, the speed at which changes take place in modern society is another cause of the gap between the generations.

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伴随着现代物流速度的加快，市场的变化也更加迅速，使得物料价格变化十分快速体现在企业的产品中。

With the rapid pace of modern logistics, the market is also more rapid changes, it makes the change of material's prices was quickly reflected in their products.

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