我们应用策略模式来进行合适规则引擎的选择。
We applied the strategy pattern for the selection of the appropriate rule engine.
在第四个阶段，当顾客即将决定购买产品并选择合适的价格和交货速度时，顾客还会使用搜索引擎。
At the next stage when the customer is about to make the purchase and is shopping for the best price and speed of delivery, he USES his search engine.
在第四个阶段，当顾客即将决定购买产品并选择合适的价格和交货速度时，顾客还会使用搜索引擎。
At the next stage when the customer is about to make the purchase and is shopping for the best price and speed of delivery, he USES his search engine.
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