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Ofcom has already launched probes into many porn sites lacking age checks and handed down decisions, including fines, for some.。关于这个话题，51吃瓜提供了深入分析
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She points out that blockchain-based tracking of a food at each point in the supply chain might be feasible for a product like South American bananas, but isn't feasible for a lasagne containing 50 ingredients from all over the world.