有了替代文本后，屏幕阅读器之类的辅助技术就可以以另一种方式传达图片的内容。
With alternative text the assistant technology, such as a screen reader, can convey the meaning of the image in an alternative way.
有了替代文本后，屏幕阅读器之类的辅助技术就可以以另一种方式传达图片的内容。
With alternative text the assistant technology, such as a screen reader, can convey the meaning of the image in an alternative way.
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