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."
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."
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”。
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