Printing indeed played a key role in standardizing and stabilizing these languages by fixing them in print, and producing dictionaries and grammar books.

通过在印刷品中修正语言，以及生产字典和语法书，印刷术确实在规范和稳定这些语言方面发挥了关键作用。

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English dictionary and two grammar books onthe big desk.

那张大写字台上有一本英语词典和两本语法书。

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Please don't forget to bring your grammar books next time.

下次请别忘记带你们的语法书来。

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For more writing tips, consult the classic books on writing and grammar, such as The Elements of Style, by William Strunk and E.

FORBES: Magazine Article

Peek inside the backpack of Zhou Tao, a middle school student at Beijing's Shijingshan school, and you'll find four grammar texts, three math texts, one chemistry book, two books on physics, five on English, three on political science, not to mention an array of extracurricular and tutorial books.

CNN: LITTLE EMPERORS

In an article Michel and Lieberman Aiden published in the January 14 2011 issue of Science, one of the top research journals, they used a database of 4% of all the books ever printed between 1800 and 2000 to show how grammar, censorship practices, and the rate at which new technologies are adopted over time.

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