?两层公共汽车

... 单层公共汽车 single-deck bus; single-decker 两层公共汽车 double decker; double-deck bus; doubledecker 双层床 bunk beds; double bed; double bunk bed; double decker bed; double-deck(/bunk/double-decker) bed; doublebunk; doubledeckerbed; stratabed,multibed ...