Oxford Advanced Learner's Dictionary: Paperback + Premium Online。Amazon.com: Oxford Elementary Learner's Dictionary: 9780194312752。7th Edition with CD-ROM Oxford Advanced Learner's Dictionary of。Oxford Advanced Learner's Dictionary: Oxford University Press。。Oxford Learner's Dictionary of Academic English: Helps students learn the language they need to write academic English, whatever their chosen subjectThe Oxford Learner's Dictionary of Academic English is designed for learners studying, or preparing to study, academic subjects on English-medium university courses. It is the only learner's dictionary to focus exclusively on academic English.