This is the 8996th most frequent Korean word.
개방했다
"Opened" or "made accessible."
In this sentence, '개방했다' expresses the action of opening or making accessible a facility, specifically a factory, to serve its operational purpose.
그 회사는 새로운 공장을 개방했다.
The company opened a new factory.
Here, '개방했다' indicates that a specific location, the national park, has been made accessible for visitors.
그 국립 공원은 올여름 관광객에게 개방했다.
The national park has been opened to tourists this summer.
In this instance, '개방했다' is used to describe the accessibility of a building to the general public during a defined timeframe.