System has a friendly user interface appearance, and we can easily select files, just like play, pause, stop operations.

系统具有美观友好的操作界面，可方便地进行文件选择、播放、暂停、停止等操作。

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Presentation model describes user interface appearance thoroughly, while interface template describes the macro-layout and relation of interface, whose basic element is interactive object.

表示模型全面描述用户界面的外观，而界面模板描述以交互对象为基本元素的界面宏观布局和关系。

youdao

Presentation model describes user interface appearance thoroughly, while interface template describes the macro-layout and relation of interface, whose basic element is interactive object.

表示模型全面描述用户界面的外观，而界面模板描述以交互对象为基本元素的界面宏观布局和关系。

youdao