COMB in ADJ
(用于 double, single 等形容词后)表示“…层的”
-decker is used after adjectives like 'double' and 'single' to indicate how many levels or layers something has.
例句
...a red double-decker bus full of tourists.
载满了游客的红色双层巴士
...a triple-decker peanut butter and jelly sandwich.
三层的花生酱和果酱夹心三明治