People who cannot talk but can move their eyes have, for some time, been able to compose messages by looking at a menu of letters and common words.

一段时间以来，不能说话的人可以转动他们的眼睛，看着字母或常用词语的菜单来写信息。

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These messages, called events, are interpreted by the program, and allow the program to respond to the user selecting a menu item, clicking on a button, and so on.

这些消息(称为事件)由程序进行解释，并允许程序对用户选择菜单项、单击按钮等操作作出反应。

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Instead, a more familiar dialogue menu is displayed - it serves as a springboard to jump to a specific category or to clear the messages altogether.

而是采用了一个更为人们所熟知的对话菜单。其功能类似一个跳板——用户可以跳转到一个特定的目录或者一键清除所有的信息。

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