笨重地移动，隆隆地行进(move heavily and clumsily)[I+prep，I+adv]：The bear～ed across the grass/through the forest. 熊笨重地穿过草地/森林。The tanks～ed up the steep incline. 坦克隆隆地开上陡坡。A stagecoach～ed down the road. 公共马车慢慢驶过马路。～along like an elephant 像大象一样笨重地前进;The heavy army tanks～ed along/by/past. 重型坦克隆隆驶过。A car～ed away/off.汽车隆隆地开走了。