roamer

n person or animal who does this 漫步行走的人或动物: He's a bit of a roamer, ie he tends not to stay in one place for very long. 他在哪儿都呆不长.

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, roadworthy, roam, roan, roar, roaring, roast, roaster, roasting, rob, rob sb. of sth., robber, robbery, robe, robin, Robinson Crusoe, robot, robot-arm, robotic, robotics, robust, robustly, robustness,