0 the key that you press on a computer keyboard to move the cursor (= symbol showing your place on the screen) to an earlier point -- 退格键（计算机键盘上的按键，用于将屏幕显示的光标位置后移）
Many typewriters don't advance accent characters, so that no backspace is needed.
The space bar, dash/underscore, index, backspace and line feed repeated when continually held down.
Even if a terminal did interpret backspace by deleting the preceding character, the system receiving the text might not.
Furthermore, this is an actual delete key, not a historically named backspace.
In computing, there has been ambiguity between the backspace key and delete key.
