double-decker /ˌdʌbəlˈdɛkɚ/ noun plural double-deckers
plural double-deckers
Learner's definition of DOUBLE-DECKER
[count]
: something that has two levels or layers双层结构;双层之物 —
usually used before another noun通常用于另一名词前 — compare single-decker, triple-decker