The main reason why it is difficult to learn idioms is that its allusions often come from ancient documents.
Sometimes it is a condensed story, sometimes it is an excerpt from the words of the ancients. No matter what, besides the original meaning of the source, it also has the extended meaning of later usage.
When using idioms, the two levels of meaning often produce functions at the same time. Therefore, you have to pay attention when using idioms to avoid misquoting.

Application features:
The information is taken from the "text" idioms in the Idioms Dictionary of the Ministry of Education. In principle, it is based on the revised version of the Mandarin Dictionary and the abridged version of the Mandarin Dictionary, and refer to the Mandarin One-Word Polyphonic Review Form.
*Can play the pronunciation of idioms
*You can use keywords to search, and there is no limit to the beginning, middle and end of the word, and then the idioms containing the searched keywords are displayed.
*You can query according to the required category, and the relevant idioms are in place at one time.

The explanation of idioms includes definitions, allusions, allusions, usage instructions, example sentences, identification, reference words, etc.

source:
Ministry of Education Mandarin Dictionary Public Authorization Network"
Idiom dictionary