Never tire of asking questions is not an idiom! It's a four-word word! The idiom is: Never tire of reading and explaining: Tired: Tired, tired. You won't get tired of reading it a hundred times. Describe a well-written poem or book, no matter how many times you read it, you won't feel bored. From: Shi's poem "Send a scholar to the West and Don't Understand": "You can never get tired of reading old books, and you can never get tired of reading them." For example: Why do some works have "~", while others don't want to see it again? ◎ Zhu Ziqing's "On Never Tired of Reading" Grammar: Linkage; As predicate and attribute; Used for favorite books or articles.