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Organized by subject and with an accompanying audio app, this is the essential reference for all English-language learners
Learn more than 10,000 of the ...
A fun and engaging visual guide to one of the most difficult subjects for students of English
Master the most common and useful English phrasal ...
The fifth edition of the Collins COBUILD Learner's Dictionary has been revised and updated to include detailed coverage of today's English in a ...
The tenth edition of the Collins COBUILD Advanced Learner's Dictionary has been revised and updated to include detailed coverage of today's English in ...