All modern operating systems provide a basic screen magnifier.
所有的现代操作系统都提供一个基本的屏幕放大器。
This means the screen magnifier cannot track changes in input focus in the same way as with native applications.
这就意味着屏幕放大器不能象本机应用程序那样在输入焦点中跟踪发生的改变。
People with low vision have difficulty seeing the screen and typically use a screen magnifier to select and enlarge portions of it.
视力低下的人看屏幕有困难，他们使用屏幕放大器来选择并放大一部分。
People with low vision have difficulty seeing the screen and typically use a screen magnifier to select and enlarge portions of it.
视力低下的人看屏幕有困难，他们使用屏幕放大器来选择并放大一部分。
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