backspace
noun [ S ] uk/ˈbæk.speɪs/ us/ˈbæk.speɪs/
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）
the key that you press on a computer keyboard to move the cursor (= symbol showing your place on the screen) to an earlier point
backspace
verb [ I ] ukus
按退格键
to use the backspace key
It's OK - just backspace and type it again. 这没关系，按退格键，然后再打一遍就行了。