double-decker

A vehicle (usually a bus, coach or train) or aircraft with two floors.

A frigate with two decks above the waterline.

双层巴士

双层公共汽车

Any object with two layers or parts stacked on top of each other.

Any object with two layers or parts stacked on top of each other.

A sandwich with three slices of bread, whose toppings are on both sides of the middle slice.

A headline that is two lines long.

a man who both penetrates (top) and is penetrated (bottom) in sex with other men; sometimes also has relationships with women and/or presents masculine as well as feminine mannerisms and appearances.