Oxford elementary learner's dictionary of english Oxford elementary learner's dictionary of English / 书名原文: Oxford elementary learner's dictionary of english. Oxford advanced learner's dictionary of current English. Oxford advanced learner's dictionary of current English / Oxford learner's thesaurus a dictionary of synonyms Oxford learner's dictionary of academic English Oxford elementary learner's English-Chinese dictionary Oxford learner's dictionary of academic English / Oxford Elementary Learner's English-Chinese Dictionary