请问HN：如何向高中生介绍云计算？
我一直在使用电力的类比。你并不是自己生产电力，而是从电力供应商（可能是政府或私人公司）那里获取服务。<p>我对这个类比感到非常厌倦，因为我在很多课堂上都重复过这个说法。我想提供一些其他的类比。我可以提供什么呢？
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Have been taking the analogy of Electricity. You do not produce electricity on your own but take service from the electricity provider(maybe government or private players).<p>I am totally bored myself o this analogy. As I have repeated this in many classes. I want to provide some other analogy. What could I provide?