双层 shuāngcéng double-decker Definitions Defs Origin Strokes Stroke Words Sentences Sents 双层床 shuāngcéngchuáng bunk bed bunk beds双层公共汽车 shuāngcénggōnggòngqìchē double-decker bus 双层巴士 shuāngcéngbāshì double-decker double-decker bus