대부분을

대부분을

"Most of" or "the majority of."

The word '대부분을' indicates the major portion or majority of the project in this context.

나는 이번 프로젝트의 대부분을 혼자서 끝냈어요.

I completed most of this project by myself.

Here, '대부분을' specifies a major part of the group, referring to the students.

학생들 대부분을 학교 행사에 참여시켰다.

I got most of the students to participate in the school event.

In this case, '대부분을' refers to the majority of the book's content.

책의 내용을 대부분을 이해했어요.

I understood most of the book's content.