Daily Chinese Idiom September 30, 2023
艰深晦涩
jiān shēn huì sè
Abstruse and unfathomable
Traditional:
艱深晦澀
这本书的内容非常艰深晦涩，需要花很多时间来理解。
The content of this book is very profound and abstruse, requiring a lot of time to comprehend.
