If it is your first dictionary, I suggest you buy Oxford Advanced. The entry setting and arrangement of this dictionary is the most reasonable in learning dictionaries. A word is an entry, and then separated by part of speech. Idioms and phrases are listed together for easy searching. The translation of the sixth edition is a classic, and the latest is the eighth edition. Collins COBUILD is also very good, but only when you write or translate in English can you fully understand its benefits, because then you will understand that word combinations, sentence patterns and even the subject of a verb are all about people and things. A little carelessness will lead to Chinglish with words, which is neither fish nor fowl.

Collins dictionary version is a bit miscellaneous, even the original name has been changed over and over again. Remember, Collins COBUILD series also has advanced and intermediate dictionaries. For example, FLTRP's Collins, named Advanced Learner, has a high level. Only Learner (with a concise cover) is a medium-sized dictionary with a smaller vocabulary than Advanced Learner.

The high level of business publishing house is to sell dog meat by hanging sheep's head. The blueprint is the 96 th edition of the Learner's Medium Dictionary, but the Chinese translation is filled with the word advanced.

If you really want to buy Collins, you can buy the second and third editions of FLTRP or the new high-level double-interpretation edition, because the meanings and example sentences have been deleted on a large scale in the fourth, fifth and sixth editions. FLTRP's high-level double-interpretation version said that it was based on the fifth edition, but actually added the meaning and example sentences deleted from the second and third editions.

Say too much, and finally remind me that to learn English well, even the best dictionary is just a tool. Only by reading a lot of native speakers' works, watching more original movies and TV series, studying extensively, remembering carefully, and dying, can we learn something (in fact, 99.99% of China's self-proclaimed English is a three-legged cat), which will be bitter, but it will also be fun!

Wish you success!