开发者如果需要编写Rails代码，仅需下载这样定制好的镜像文件，并通过虚拟机工具来加载镜像及启动上面的系统。
A developer writing Rails code, can simply download such an image file, point the Virtualization software at it and boot it.
开发者如果需要编写Rails代码，仅需下载这样定制好的镜像文件，并通过虚拟机工具来加载镜像及启动上面的系统。
A developer writing Rails code, can simply download such an image file, point the Virtualization software at it and boot it.
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