记录订单消息的目的是对消息执行 XQuery 操作，以查找订单延迟的原因。

The purpose of logging the order messages is to perform XQuery operations on the message to find out why orders were delayed.

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我为店里做了所有的订单，并记录了库存情况。

I did all of the ordering for the store, and I kept track of the inventory.

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因此，例如一个“客户”记录可能拥有代表客户已下单的所有“订单”记录的集合。

So, for instance, a "customer" record might own the set of all the "order" records representing orders that that customer had placed.

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