新概念英語第二冊習慣用語總結:Lesson 91

track n. 1．跑道；軌道；足跡
    track team 田徑隊
    例句：Bill has tried so hard to win the race since he first joined the track team, but it's two years later and he still hasn't.
    比爾加入田徑隊之后，一直想贏得比賽，可是兩年了，他還是沒能如愿以償。