跟踪球 meaning in English
tracking ball; tracker ball
Examples
- Sharapova ' s left hand is starting to move out in front of her to track the ball
莎拉波娃的左手开始在身前移动跟踪球。 - 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。