This is the 5394th most frequent Korean word.
들여와
"Bring in" or "import."
Here, '들여왔다' signifies importing or acquiring something tangible, like machinery.
그 회사는 올해에 새로운 기계를 들여왔어요.
The company brought in new machinery this year.
In this context, '들여와야 합니다' expresses the need to adopt or implement an abstract concept, such as policies.
우리는 자연 환경을 보존하기 위해 새로운 정책을 들여와야 합니다.
We need to introduce new policies to preserve the natural environment.
In this sentence, '들여왔다' means 'brought in' or 'introduced' something from outside into a place or system.