六点钟有人来换你的班。
当Paiko被捕时，一个新的警官正好来换长桌后面警官的班。
A new Sergeant was taking over from the one who had been at the desk when Paiko was arrested.
一个解决的体例似乎是每次换班持续的时刻长些，可以一个月甚至三个月换一次班。
One answer would seem to be longer periods on each shift, a month, or even three months.
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