实现这些键盘特性并不困难，但是要将此小部件的属性通知给屏幕阅读器就不是一件很容易的事。
It will not be hard to implement these keyboard features, but it is difficult to tell screen readers the attributes of this widget.
20世纪40年代熟悉手动打字机的打字员和20世纪60年代使用电动打字机的秘书相比，两者各自认为重要的键盘特性是不同的。
The attributes that were important to a typist familiar with the manual typewriters of 1940s are different from what's important to a secretary who used a Selectric in the 1960s.
联想公司的设计副总裁大卫·希尔表示，机电键盘的本质特性在过去20年大大改变了。
The essential characteristics of the electromechanical keyboard have changed dramatically over the past 20 years, says David Hill, vice President of design at Lenovo.
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