In 1810, a German printer named Friedrich Koenig started working on a printing press that was connected to a steam engine.

1810年，一位名叫弗里德里希·科尼格的德国印刷工开始研制一台与蒸汽机相连的印刷机。

And frankly, they were luxury items. And then a printer named Johannes Gutenberg, in the mid-fifteenth century, created the means to mass-produce a book, the modern printing press.

坦率地说，它们是奢侈品。然后，在 15 世纪中叶，一位名叫约翰内斯·古腾堡 (Johannes Gutenberg) 的印刷商发明了批量生产书籍的方法，即现代印刷机。