This is the 314th most frequent Swedish word.
krävs
"Is required" or "is demanded."
Here, "krävs" is used in a slightly formal construction emphasizing the necessity of a solution strategy for resolving the issue.
För att lösa problemet krävs det en ny strategi.
To solve the problem, a new strategy is required.
The word "krävs" is used in a passive construction meaning "is required." It conveys the necessity of hard work in the context of achieving success.
Det krävs hårt arbete för att uppnå framgång.
Hard work is required to achieve success.
The instance of "krävs" highlights the necessity of certain qualities (patience, perseverance) in the specific case explained.