It is such a prestigious university that only excellent students are entitled to a full scholarship each year.

Giải thích: are entitled to: có quyền với…   

have the right to refuse: có quyền từ chối                   are given the right to: được cho quyền với…

are refused the right to: bị từ chối quyền với…          have the obligation to: có nghĩa vụ

=> are entitled to = are given the right to