鑽
故
紙
堆
鑽
故
紙
堆
Definitions4 characters outdated writings (idiom);
Usage•••frequent
Pronunciations
鑽
故
紙
堆
As word
1to dig into piles of outdated writings (idiom); to study old books and papers
2to dig into piles of outdated writings (idiom); to study old books and papers
3to dig into piles of outdated writings (idiom); to study old books and papers
4to dig into piles of outdated writings (idiom); to study old books and papers