Which idiom dictionary is better?

It is recommended to buy an idiom dictionary published by the Commercial Press, which is as authoritative as the choice of Xinhua Dictionary.

It is enough for primary school students to use the new curriculum standard idiom dictionary for primary school students (four-color version). In the long run, you can choose China Idiom Dictionary or Xinhua Idiom Dictionary.

Idioms belong to a familiar sentence: unlike ordinary phrases or short sentences, words in idioms cannot be exchanged casually, otherwise they are just ordinary phrases. According to the strict definition, there are about 5,000 idioms, but there are also dictionaries containing 20,000 idioms. Some idioms can be judged literally, such as "quick wits" and "difficult to fly". Others must know the source and provenance to understand, such as "carving a boat for a sword" and "Ye Gong loves dragons".

Idiom dictionary is a collection of idioms, and it is a reference book for people to arrange and explain idioms in a certain order. Idioms are a part of stereotyped phrases or short sentences in language vocabulary. An idiom dictionary is a reference book for finding idioms. Most idioms are input to explain their meanings, so that people can easily understand and use idioms.