backspace

名词 backspace:

1. the typewriter key used for back spacing
   同义词：backspace key, backspacer

动词 backspace:

1. hit the backspace key on a computer or typewriter keyboard

back.space

v.intr.（不及物动词）
back.spaced,back.spac.ing,back.spac.es
To move the carriage of a typewriter or the cursor of a computer back one or more spaces by striking the key used for this purpose.
按退格键：为将打字机的滑动架或计算机的光标向回移动一格或几格而敲打用于此种目的的键钮
n.（名词）
The key on a typewriter or computer keyboard used for backspacing.
退格键：打字机或计算机键盘上用于退格的键