What we can learn from the old man is this: if you've lost a lot oversomething that doesn't work, let it go and move on.
我们能从这位老人身上学到的是:如果你因为一件不成功的事情失去了很多,那就让它过去,继续前进。
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Some opt to transition one running instance from one physical resource over to another should somethinggo wrong; others simply transition the IP addresses from one instance to another.