86.The more student who enroll in a course but dont come to campus,the more the school saves on keeping the lights on in the classrooms,paying doorkeepers, and maintaining parking lots.

　　主干：The more students... the more the school saves

　　解析：主干部分是the more... the more... 的特殊句型，表示越...越...。who引導的定語從句修飾students。

　　譯文：報考該校卻不來校園上課的學生越多，學校在用于教室照明、支付看門人及維護停車場費用上就可以節省越多。