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历史:
CET-4 CET-6 考研 TOEFL BNC: 5445 COCA: 7028

staircase

staircase /ˈsteɚˌkeɪs/ noun
plural staircases
staircase
/ˈsteɚˌkeɪs/
noun
plural staircases
Learner's definition of STAIRCASE
[count]
: a set of stairs and its supporting structures(包含扶手、栏杆等的)楼梯
see also moving staircase, spiral staircase

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