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。
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。
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。
At $199, the Pocket Reader is now a very attractive option for more cost-conscious users (Amazon's cheapest Kindle costs $299, though it comes with a slightly larger screen).
199美元的口袋版阅读器为那些看重价格的用户提供了上选（Amazon最便宜的Kindle虽然屏幕稍大，但也要花费299美元）。
The screen reader might alert users with a sound that there are some updates in the Web page.
屏幕阅读器可以通过声音提醒用户web页面中出现了一些更新。
Therefore, it is almost impossible for the screen reader to tell the users where they are in the page.
因此，要让屏幕阅读器将当前页面位置告诉用户是几乎不可能的。
This tool for visually-impaired users essentially turns the trackpad into a screen reader, supporting special gestures to switch between windows and audio feedback when clicking.
VoiceOver可以把trackpad从根本上变成一个屏幕阅读器，支持特殊手势切换窗口以及在点击时获得声音反馈。
Narrator is intended to provide a minimum level of functionality for blind users. Blind users will need a screen reader utility program with higher functionality for daily use.
“讲述人”为视觉有障碍的用户提供最基本的使用功能。在日常使用中，视觉有障碍的用户需要功能更强的屏幕读取器工具。
Most users with visual impairments will need a screen reader with higher functionality for daily use .
大多数患有视觉障碍的人需要更高功能的屏幕阅读器来满足日常所需。
Most users with visual impairments will need a screen reader with higher functionality for daily use .
大多数患有视觉障碍的人需要更高功能的屏幕阅读器来满足日常所需。
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