"A score to settle" nghĩa là gì?

"(Have) a score to settle" nghĩa là có chuyện cần tính sổ, chuyện cũ cần giải quyết. Còn "settle a score with someone" nghĩa là đi tính sổ, trả thù ai về chuyện cũ.

Ví dụ

But he had a personal score to settle with Alex.

Don't forget, I still have a score to settle with the Heartless Scholar.

Ever since he associated Sergeant (Trung sĩ) Sintim with his first frame up and subsequent dismissal (đuổi khỏi) from the University, he had earmarked (đánh dấu) this stooge of a police officer for a score to settle.

You may find that you want to settle a score with him and if given a chance; you'd love to settle it. This desire to settle score with him is what will bring you two together, so that this score may be settled and this desire may be deleted.