咖味滋双解词典

track ball

T 开头单词

同根派生

     

英汉例句

  • Input devices include keyboards and pointing devices such as mouse,joystick,track ball, or light pen.
    輸入設備包括鍵磐和點擊設備如鼠標，操縱杆，跟蹤球或光筆。