Add accessibility features to external media like PDF and Flash.
对于外部媒体，如PDF和Flash，添加易访问性功能。
Compared with paper media, the Internet enjoys many obvious advantages such as high speed, great efficiency, easy accessibility, to name just a few.
与纸媒相比，互联网具有许多明显的好处比如说高速，高效，易于操作等等。——二三段均可用。
Compared with paper media, the Internet enjoys many obvious advantages such as high speed, great efficiency, easy accessibility, to name just a few.
与纸媒相比，互联网具有许多明显的好处比如说高速，高效，易于操作等等。——二三段均可用。
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