2. Longman dictionary clearly shows spoken and written language, and the most commonly used words are divided into three grades according to frequency: 1000, 2000, 3000.
3. Longman's examples are all colloquial, and they are all selected from real daily conversations, which are more suitable for readers who emphasize oral English learning.
4. In addition, Longman Dictionary, with pictures and rich explanations, is especially popular among university and middle school teachers.
Disadvantages: There are too few examples.
Oxford advantage:
Oxford Advanced English-Chinese Learning Dictionary has a long history. From the first edition in the 1920s to now, it has been published in six editions. Its interpretation is rigorous and accurate, and its grammatical annotations are detailed, which enjoys a high reputation among readers.
Disadvantages: reading difficulties.
Collins:
It is a book published by Harper Collins Publishing Group 18 19. It contains 1 18000 words and 220000 related explanations, and timely collects new words and dialects commonly used in various regions of the world.
Advantages:
1. All the resources of this dictionary come from Collins' unique language database (called Collins Word Network).
2. The database has collected more than 654.38 billion words and examples of these words used in books, newspapers, radio, television, magazines, letters or speeches, and accurately expressed the meanings of English words used by people today.
3. One of the characteristics of this dictionary is to explain the entries with complete English natural sentences, which fully embodies the typical meaning and usage of words in the context.
Disadvantages: Collins's example is more difficult, and only English may not understand it.
So Longman is suitable for some weak foundations, and Oxford is practical and concise. Longman is superior to Oxford in printing and typesetting.