请教个英语单词！！

noun
a key on a typewriter or computer keyboard used to cause the carriage or cursor to move backwards
（打字机或电脑键盘的）退格键
[mass noun]a device on a video recorder or camcorder which produces a slight backward run between shots to eliminate disturbance caused by the interruption of the scanning process
（录像机或摄影机上的）反回装置
verb
[no obj.]move a typewriter carriage or computer cursor back one or more spaces
退格

backspace 退格键,它的作用是使光标左移一格,同时删除光标左边位置上的字符.

键盘上的"退格".反义是enter.

就我所知，backspace只是电脑键盘上的一个键而已，意思是“退后一格”，并没有其它意思

退格键