In the sample application, the design calls for the Preference screen to be invoked using a menu item.

在样例应用程序中，设计要求Preference屏幕使用菜单项进行调用。

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In a production environment, a string that is a configuration item should be externalized as an Eclipse preference.

在生产环境中，应该将作为配置项的字符串具体化为一个Eclipse首选项。

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“A company can exploit customers’ preference for the middle item, ” says Simonson, “by presenting a more expensive item next to the one it is really trying to sell.”

“公司可以就顾客对中档产品的偏好坐坐手脚，“Simonson讲到，“比如在他们真正想推销的产品旁边摆上一个更贵的。”

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“A company can exploit customers’ preference for the middle item, ” says Simonson, “by presenting a more expensive item next to the one it is really trying to sell.”

“公司可以就顾客对中档产品的偏好坐坐手脚，“Simonson讲到，“比如在他们真正想推销的产品旁边摆上一个更贵的。”

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