Lines 22 through 28 define one constraint for each day of the week.
第22行到28行为每周的每天定义了一个约束。
Lines 34 through 41 define the values for this parameter: the minimum employees needed on each day of the week.
第34行到41行定义了这个参数的值:每周的每天都所需要的最少员工数。
There was a heavy snowfall the week before Christmas that year, and for the space of nearly two days the power lines were down.
那年圣诞节前的一个星期里,雪下得很大。 将近两天的大雪,压断了供电线路。
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