double-decker

名词 double-decker:

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

dou.ble-deck.er

n.（名词）
Something, such as a vehicle, structure, or sandwich, that has two decks, floors, or layers.
双层结构，双层车，双层三明治：带有双层甲板、楼板或层面的东西，如双层结构、双层车或双层三明治