您已经看到了如何使用主菜单和工具栏创建活动及其他结构元素，还看到了如何使用Outline视图定义额外的元素。
You have seen how to create activities and other structural elements using the main menus and toolbar, and how to define additional elements using the Outline view.
主程序窗口由顶部的列表窗口，在底部的状态栏，在左侧边栏，可用文件夹列表，工具栏和主菜单。
The main program window consists of List Window, Status Bar at the bottom, Side Bar at the left, List of available folders, Tool Bar and Main Menu on the top.
主程序窗口由顶部的列表窗口，在底部的状态栏，在左侧边栏，可用文件夹列表，工具栏和主菜单。
The main program window consists of List Window, Status Bar at the bottom, Side Bar at the left, List of available folders, Tool Bar and Main Menu on the top.
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