roadworthy

adj (of a vehicle) fit to be driven on a public road （指车辆）适於在公路上行驶的.

roach, road, road safety, road sense, road show, road tax, road test, road to, road-block, road-hog, road-house, road-mender, road-metal (also metal), road-works, roadblock, roadie, roadrunner, roadside, roadway, roadworthiness, roam, roamer, roan, roar, roaring, roast, roaster, roasting, rob, rob sb. of sth., robber, robbery, robe, robin, Robinson Crusoe, robot, robot-arm, robotic, robotics, robust,