补充操作在主节点恢复时退回主节点。
The complementary action is to failback when the primary node is recovered.
通过加载Linux来替代(或补充)主机操作系统，可以使老式机器焕发新的活力。
You can give older machines a new life by loading Linux instead of (or in addition to) the host operating system.
在应用程序中进行了其他一些操作之后，您可以获得能够补充Firebug (Firefox扩展)的配置代码。
After you have done a few other things within the application, you may have profiling code to supplement Firebug (a Firefox extension).
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