因為成績追唔上及對此科無興趣---呢句英文退學信應該點寫?

To [the person you are addressing the letter to]

I am writing to inform you that I would like to withdraw from the school. After a carefull and thorough discussion with my parents, we came to the conclusion that because I lack interest in the subject I am currently taking and also I have a hard time catching up with the class, I would there therefore regretfully have to withdraw from the school. Thank you for your understanding and attention.

from xxx
sign
date

my examination result cannot catch up with others , and i am not intrested in X eg. IS Maths......

I would like to 退學 after discussing with my parents because I can't keep up and I'm not interested in this subject.

「退學」的英文怎麼譯？