RandyCassingham，一个从20世纪80年代就开始用DVORAK键盘的用户，写了一本关于这款键盘历史的书“DVORAK键盘：人体工学的键盘，现在的美国标准”。
A Dvorak user since the 1980s, Randy Cassingham wrote a book about its history, called "Dvorak Keyboard: The Ergonomically Designed Keyboard, Now an American Standard."
人体工学上设计不良的常用工具有雪铲、计算机或打字机的键盘。
Examples of common devices that are poorly designed ergonomically include the snow shovel and the computer or typewriter keyboard.
人体工学上设计不良的常用工具有雪铲、计算机或打字机的键盘。
Examples of common devices that are poorly designed ergonomically include the snow shovel and the computer or typewriter keyboard.
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