trackersn.追踪者（tracker的复数形式）trackn.轨道；跑道；踪迹；小路；乐曲v.追踪；跟踪Track of a political solution政治解决轨道track-and-field education田径教学tracking and data acquisition跟踪和数据收集Track lifting leveling system起道抄平系统Tracking Data Editing Program跟踪数据编辑程序tracking station of satellite卫星跟踪站tracking condition prediction观测预报Track and field health sports田径健身运动Tracking distance measurement跟踪测距tracking-differen- tiator微分跟踪器