审视上述挑战时，我们大量讨论采用门槛。S3已服务二十年，我们希望现有客户能立即在自有数据上使用方案，而非迁移至全新系统。海量现有存储桶支撑的应用依赖S3对象语义按文档运作。我们不愿引入可能破坏这些应用的微妙新行为。
Credit: Timothy Werth / Mashable
，这一点在扣子下载中也有详细论述
初代Kindle Paperwhite。关于这个话题，易歪歪提供了深入分析
The HushJet Mini Cool costs $100, which is cheap for a Dyson product but expensive for a handheld fan. It's available in a trio of colorways. The gray model is available tomorrow. The red version goes on sale this May and the blue one will be available for purchase in June.