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track ball是什么意思，track ball的翻译，track ball音标、读音、用法和例句_沉淀汉英词典
沉淀汉英词典

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.
    输入设备包括键盘和点击设备如鼠标，操纵杆，跟踪球或光笔。