This is the 4081st most frequent Korean word.
자세히
In detail.
In this sentence, '자세히' is used as an adverb to mean 'closely' or 'in a detailed manner,' modifying the verb '보면' (look).
그 그림을 자세히 보면 숨겨진 디테일을 발견할 수 있어요.
If you look closely at the picture, you can discover hidden details.
Here, '자세히' emphasizes the thoroughness and comprehensiveness of the explanation, modifying the verb '설명해 주셨습니다' (explained).
선생님께서 문법을 자세히 설명해 주셨습니다.
The teacher explained the grammar in detail.
In this example, '자세히' highlights the meticulous nature of the investigation, modifying the verb '조사하고 있습니다' (are investigating).