This is the 10280th most frequent Korean word.
교실
Classroom.
Here, '교실' is used as a location to specify where the action (studying) takes place.
교실에서 공부를 열심히 해야 한다.
You must study diligently in the classroom.
In this sentence, '교실' refers to individual rooms designed for teaching and learning within the school.
우리 학교에는 깨끗한 교실이 많다.
Our school has many clean classrooms.
Here, '교실' denotes the area used for group activities, emphasizing its role as a gathering place for educational purposes.