A configuration item may be an environment variable or a change in the database configuration, such as its memory allocation.

配置项可以是环境变量或者数据库配置修改，例如数据库的内存分配。

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The on hand balance of an item, less the allocation, leaves the balance available for production or to promise to customer orders.

一项物品的现存余额减去分配，剩余的便可用于生产或让客户下订单。

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In accordance with state tax laws, the total selling price of an item will generally include item-level shipping and handling charges, item-level discounts, gift-wrap charges, and an allocation of order-level shipping and handling charges and order-level discounts.

FORBES: Confused By Amazon Taxes? You're Not Alone