This is the 5670th most frequent Korean word.
발표에
"발표에" means "in the presentation" or "during the presentation."
Here, "발표에" refers to a specific presentation that is being approached with confidence.
그는 발표에 자신감을 가지고 임했습니다.
He approached the presentation with confidence.
In this sentence, "발표에" denotes the presentation for which the materials are needed.
우리는 발표에 필요한 자료를 준비하고 있습니다.
We are preparing the materials needed for the presentation.
Here, "발표에" signifies the context of the presentation being open to questions.