爬行器只查看 HTML 代码，就像有视力障碍的用户所用的屏幕阅读器一样。
Spiders see only the HTML coding, just as screen readers work for visually impaired people.
例如，您可以采用一些步骤以确保使用屏幕阅读器可以正确读取web页面，这样的屏幕阅读器可以为视觉有障碍的人大声朗读web页面。
For example, you can take steps to make sure that your Web pages can be read properly with screen readers, which read Web pages aloud to people who have difficulty seeing them.
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 .
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