This is the 14892nd most frequent Korean word.
반납하면
"반납하면" means "if [someone] returns [something]."
In this sentence, '반납하면' is used to describe the condition or action of returning something, specifically a book, and it sets up a conditional statement based on this action.
책을 늦지 않게 반납하면 추가 요금이 없습니다.
If you return the book on time, there will be no additional fee.
Here, '반납하면' again reflects the action of returning, with emphasis on ensuring the proper and secure handling of the returned items.
도서관에 물건을 반납하면 안전하게 관리됩니다.
If you return the items to the library, they are safely managed.
The usage of '반납하면' in this context implies an action of returning followed by a subsequent mandatory process, showcasing the sequence of protocol.