虽然完整的说明书规定了ICalendar对所有的日期有关的事件都管用，我们最关心的只是：闹铃什么时候会响?
While the completeness of the iCalendar specification makes it useful for just about any time based event, with the iAlarmClock we only have one pressing concern: when should the alarm go off?
您经常依据的规格说明书是否完整或精确？是否经常不清楚这些需求要表达的真正意思是什么？
Are you often working from incomplete or inaccurate specifications that leave you wondering what the requirements are actually trying to convey?
命令说明书仍然是关于每个命令的语法和选项的最完整文档。
The command Reference still contains the most complete information about syntax and available options for each command.
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