Hit the backspace key on a computer or typewriter keyboard.
敲计算机或打字机上的退格键。
That certainly would include writing materials, computer or typewriter, reference books or materials.
这其中当然包括了书写材料,计算机或者打字机,参考书或参考资料。
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。
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