raceway

raceway
noun
(chiefly N. Amer.)(主北美)
  1. a track or channel along which something runs, in particular
    车道,通道,尤指
    ■a water channel, especially an artificial one of running water in which fish are reared
    (用来养鱼的活水)人工水道
    ■a groove or race in which bearings run
    (滚动轴承的)座圈,滚道
    ■a pipe or tubing enclosing electric wires
    线槽
  2. a track for trotting, pacing, or harness racing
    遛马道;挽车赛马跑道
    ■a track for motor racing
    赛车跑道
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