In all cases where you like to create search-engine-friendly content or content that is accessible to people who browse the web without plugins, alternative content is your best friend.
无论何时你想要创建对搜索引擎和对未安装插件的浏览者友好的网页时，替换内容都是你最好的朋友。
In all cases where you like to create search-engine-friendly content or content that is accessible to people who browse the web without plugins, alternative content is your best friend.
无论何时你想要创建对搜索引擎和对未安装插件的浏览者友好的网页时，替换内容都是你最好的朋友。
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