如果我当时知道他的预测的准确性，我会把他说的话录下来。
If only I knew how accurate his predictions would be, I'd have taped him.
历史数据同样重要，随着时间的推移可以衡量预测的准确性。
Historical data are important, too, to gauge forecast accuracy over time.
定期改进销售预测的准确性，以满足客户对交货时间的需求。
Improving regularly sales forecasting on accuracy to meet OEM customer requirement of lead time.
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