词典释义：
n.（成对的）一张单人床；对床
Would you like a twin bed or a queen size?
你要小号的床还是中号的床?
Hotel Ibis Qingdao Donghai features 138 comfortable single and twin bed rooms.
青岛宜必思酒店拥有138间舒适的客房，包括大床房和双床房。
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