A trackball is essentially an upside-down mouse.
轨迹球鼠标实际就是倒置的普通鼠标。
Fixed auto brightness, hardware key lights and trackball light notifications.
固定自动亮度，硬件锁灯和轨迹球通知。
Adjust how much your pointer accelerates as you move your mouse or trackball faster.
调整指针在您加快移动鼠标或滚球时加速多少。
Remove the mouse arrow to mark the underside of the ring with a bezel, and remove the trackball.
取下鼠标底面带有箭头标记的圆环挡板, 并取出轨迹球。
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