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."
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.
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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