keystrokes什么意思解释？

She can do 3000 keystrokes an hour.她在一小时内能按键3000次.Use Recorder to record keystrokes or mouse actions to play back later.用记录器记录击键或鼠标行为,以备后来播放.The number of keystrokes was used as a measure of work.敲击键盘的次数被用作工作量的度量指标....

keystrokes的音标：...