trackern.追踪者；跟踪器trackn.轨道；跑道；踪迹；小路；乐曲v.追踪；跟踪tracking data跟踪数据tracking head跟踪头track rollers履带滚轮tracking rate跟踪速率track breaker跟踪遮断器track bushing履带销衬套track treadle轨道接触器, 轨道踏板track steward跑道检查人员tracking gate跟踪波门track locking进路锁闭

1. I have a red tracksuit with fleecy lining.
   我有一件红色的有羊毛衬里的运动服。
2. Sam threw his tracksuit top into his bag and grabbed his water bottle.
   山姆把运动服塞到书包里然后又拿起水瓶。