其显示在主要屏幕上的菜单是按环形排列的。
这款程序通过在屏幕上一次显示4个菜单，这4个菜单分别是基本需要、活动、食物和玩具。
The system works by displaying four panels on the screen at a time, such as basic needs, activities, food and toys.
通过在屏幕上显示第一菜单及其上级菜单中各功能项的图标，实现了不同层级菜单显示的连续性。
Through the display of the ICONS of the functional items in the first menu and the superior menus of the first menu, the continuity of the display of the menus in different hierarchies is realized.
通过在屏幕上显示第一菜单及其上级菜单中各功能项的图标，实现了不同层级菜单显示的连续性。
Through the display of the ICONS of the functional items in the first menu and the superior menus of the first menu, the continuity of the display of the menus in different hierarchies is realized.
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