但是到少年阶段后，我们发现权力工具不再起作用了。
But there comes a point during the teen years when power tools no longer work.
您应当用Portal卸载软件从机器中卸载Portal的安装，但是在特定的情况下，例如一个失败的安装，这种方法就不起作用了。
You should use the Portal uninstaller to remove a Portal installation from the machine but in certain cases such as an aborted installation this may not work.
我必须无数次地在编辑器中使用ctrl - z，以便恢复到前面一个我认为逸出分析应该起作用的版本，但是却不知由于什么原因，逸出分析却突然不起作用了。
I had to use ctrl-z many times in my editor to revert from a version where I thought elision was working and then for some reason, it just didn't work anymore.
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