The key variables driving cost are size and type of order, special versus standard order, and so on, not high-loyalty versus divided-loyalty customers.
驱动成本的关键变量是订单的大小和类型、特殊订单与标准订单等等,而不是在于高忠诚度还是忠诚度不同的客户。
OK. So if we have variables, one of the questions we can ask is, what's the type of the variable.
好,如果我们有了一个变量,我们要问的问题之一就是,这个变量的类型是什么?
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