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中考 高考 CET-4 CET-6 考研 TOEFL IELTS BNC: 2930 COCA: 2947
shelfshelfD.J.:[ʃelf]K.K.:[ʃɛlf]n.1.架, 棚My shelves are full of books.我的书架上摆满了书。2.沙洲; 暗礁The ship ran into a shelf and sank to the bottom of the sea.船撞上了暗礁, 沉入了海底。

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