Websites are often very visual, and there are all these sorts of graphs that aren't labeled and buttons that aren't labeled, and that's why the World Wide Web Consortium 3, known as W3C, has developed worldwide standards for the Internet.
网站通常很视觉化 有很多各种各样的图片 它们没有被标示，按钮也没有被标示 这就是为什么World Wide Web Consortium 3， W3C，开发了一套世界通用的 互联网准则