double-decker

详细解释:n. 双层船, 双层床, 双层桥梁, 双层电车, 双层公共汽车

英语解释：

名词 double-decker:

a vehicle carrying many passengers; used for public transport同义词：bus, autobus, coach, charabanc, jitney, motorbus, motorcoach, omnibus, passenger vehicle