I wish my mouth had a backspace key.

我多希望嘴上有个退格键。

Match a backspace if in character matching mode.

比赛一退格如果在字符匹配模式。

Hit the backspace key on a computer or typewriter keyboard.

敲计算机或打字机上的退格键。

Slip up on the backspace key to delete all chars in buffer.

删除键向上滑动删除所谓未上屏字符。

Experience tells us that Backspace does nothing of the sort.

不过经验告诉我们，退格键不会那样。