The Letter S, by Donald Knuth (1980) [pdf]

It appears that the content you provided is the raw binary data of a PDF file rather than the text of the article itself. As a result, I cannot translate the content directly.

However, I can provide you with the context for this famous piece of writing by Donald Knuth. “The Letter S” is a well-known essay by the computer scientist Donald Knuth, published in 1980, which explores the aesthetics and history of the letter “S” in typography.

If you have the text version of the article, please paste it, and I will be happy to format it into the alternating bilingual format for you.

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关于《字母 S》（The Letter S）

您提供的文本内容是 PDF 文件的二进制原始数据，而非文章的文字内容，因此我无法直接对其进行翻译。

不过，我可以为您简要介绍一下唐纳德·克努特（Donald Knuth）的这篇文章。这篇发表于 1980 年的《字母 S》是计算机科学泰斗克努特的一篇著名随笔，探讨了字母“S”在排版学中的美学与历史演变。

如果您能提供该文章的文本内容，请将其粘贴在这里，我很乐意为您将其整理为中英对照的格式。