For example, if you decide to display help information as a tool tip rather than in a separate window that would open by user request, the tool tip might not be accessible to screen reader users.

例如，如果您决定将帮助信息作为工具提示，而不是在由用户请求打开的单独的窗口中，工具提示可能对屏幕阅读器用户是不具有易访问性的。

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But these elements are still not accessible to the screen reader or to users that only use the keyboard.

但是，这些元素不能由屏幕阅读器或只使用键盘的用户访问。

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A screen reader is mainly used by visually impaired users.

屏幕阅读器主要针对视力受损的用户。

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By eliminating the need to retype text from print media onto the screen, Optical Character Reader saves users a great deal of time.

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In addition, the new Reader line offers users on-screen functionality to look up words and phrases with the built-in New Oxford American Dictionary, Second Edition and Oxford Dictionary of English eDictionaries, as well as 10 translation dictionaries in languages such as French, German, Spanish, Italian and Dutch.

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