该表示字符串是用户在运行时希望更改折扣时所看到的内容——他们不会看到关于您如何实现该规则的详细信息。

This presentation string is what users will see at runtime when they want to change the discount a "they will not see the details of how you are implementing the rule."

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当您选择已更改的项之一时，将显示对该项所做的更改的详细信息。

When you select one of the changed items, the details of the change to that item are shown.

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