Collins Cobuild Advanced Dictionary of American English: 25-Pack - Tapa blanda

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With innovations such as DefinitionsPLUS and vocabulary builders, the Collins COBUILD Advanced Dictionary of American English transforms the learner's dictionary from an occasional reference into the ultimate resource and must-have dictionary for language learners. The definitions have been created using a controlled vocabulary, and each definition has been reviewed by a team of classroom teachers to ensure that they are appropriate for learners at the intermediate level.