Companies that must determine well in advance of the selling season how many units of a new product to manufacture often underproduce products that sell well and have overstocks of others.

那些必须在销售季节之前就确定新产品要生产多少的公司，往往会生产出销量好的产品，而其他产品则库存过剩。

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March is the selling season.

三月份是销售期。

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But the selling season is getting near.

不过销售旺季就要到了。

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Purkayastha also wants to extend the selling season for truffles by expanding PAQ's product line with longer-lasting truffle oils and jams.

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Here as well is a chart of what a seasonally adjusted bottom near the middle of the selling season might look like.

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"If we could have done a better job accomplishing that in the holiday launch or in the selling season following, that certainly would have made a positive difference, " Ms. Reller said.

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