另一个被反复忽视的约束，来自抽佣本身的结构变化。早期的抽佣往往表现为清晰的单一比例，但随着平台业务复杂化，收费逐渐被拆分为技术服务费、营销推广费、会员费、广告费等多项组合。抽佣不再是一个价格，而是一套规则。对供给侧而言，理解与比较成本显著上升；对平台而言，收费的可解释性开始影响交易秩序与信任基础。
One farmer in Somerset told the BBC that he was living on a "knife edge" as his crops were days away from rotting in the floodwater.
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So far 58 skeletons, dating to the 6th or 7th Century, have been uncovered at the site. What's unusual is that nearly all belonged to women.
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