Metadata
Author: LASER-wikipedia2
Data
English[en]
Apple continued shipping the round mouse, adding a divot to the button in later versions so that users could distinguish proper orientation by feel.
Chinese[zh]
但苹果仍继续配送这种鼠标,并在以后的版本中在按键上加入了凹痕以方便用户区分正确的方向。