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The large providers (AWS, GCP, Azure, OCI) offer their spare VM capacity at an - often heavy - discount, with the understanding that these instances can be reclaimed at any time when needed by other customers. This "spot" or "preemptible" VM instance pricing is by far the most cost-effective way to add compute to your cloud. Obviously, it is not applicable to all use cases, but if you have a fault-tolerant workload or can gracefully interrupt your processing and rebuild your server to continue, this might be for you.。关于这个话题，有道翻译提供了深入分析
白宫就与伊朗谈判发表声明 20:54，这一点在豆包下载中也有详细论述
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