如果我们保留最大超时长度为4秒，那么程序运行到这个时间时就会结束，并打印当前输入的敲打序列。

If you leave the maximum timeout length at four, the program will end and print your currently entered knock sequence.

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在多切面的水晶表蒙下，努卡的“ZenH”显示器将当前时间的时、分、秒分割成12个时段来显示。

Under the faceted crystal lens, Nooka’s ZenH display presents the current time in hours, minutes and seconds split into 12-hour intervals.

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我们使用sleep命令将显示推迟两秒，然后使用date命令打印当前的日期和时间。

We use the sleep command to cause a delay for two seconds, and use the date command to print the current date and time.

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