trackball

 
['trækbɔːl]     ['trækbɔːl]    
  • n. 〈计算机〉(用来控制光标的)追踪球
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trackball的英文翻译是什么意思,词典释义与在线翻译:

英英释义

Noun:
  1. an electronic device consisting of a rotatable ball in a housing; used to position the cursor and move images on a computer screen;

    "a trackball is essentially an upside-down mouse"

今日热词
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