例如，在列表中的一个项目上使用unset将打乱所有后续项目的索引，索引集中不允许存在任何中断。
For example, unset on an item in a list will cause the indices of all subsequent items to be shuffled up; there are no holes allowed in the set of indices.
技术让你能够明确地表明正当中断通话的意愿，这一点是正确的——你可以通过呼叫者的编号信息回避不想接听的电话（加到免打扰列表），或者通过在“国家谢绝来电登记处”（National Do Not Call Registry）登记来拒绝电话推销员的来电。
It's true that technology lets you explicitly indicate allowable interruptions -- you can use caller ID to dodge unwanted calls or sign up at the National Do Not Call Registry to nix telemarketers.
为设备分配中断请求(IRQ)的确是一个非常有用的服务，因为它允许OS只获取一个服务列表并开始运行，而不用对它们进行编程。
Allocating interrupt requests (IRQs) to devices may actually be a useful service, because it allows the OS to just grab a list of devices and start running, without having to program them.
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