This is the 4644th most frequent Korean word.
개정해야
"Must be revised" or "need to amend."
In this sentence, 개정해야 refers to the necessity to revise or update a law or regulation.
이 법률은 오래되어 이제 개정해야 합니다.
This law is outdated and now needs to be revised.
Here, 개정해야 implies revising educational material for improvement or updates.
교과서를 더 나은 내용을 포함하도록 개정해야 합니다.
The textbook needs to be revised to include better content.
In this context, 개정해야 points to modifying certain parts of a set of rules or formal regulations.