外[内] 车道 the outside [inside] lane; 单向[双向](行) 车道 single [double] lane; 四车道公路 four-lane highway; 禁止一般车辆在这条车道上通行 shut off the way from ordinary traffic; 他们封锁了一条车道在铺路。 one lane is closed while they're paving the road.; 车道车流 lane flow; 车道通行能力 lane capacity