it's very hard for the professors to schedule a lot of individual time for the people who can't make it.

教授很难为那些没法按时考试的考生另外安排时间。

临时抱佛脚？也做过 - SpeakingMax英语口语达人

So, once you know your schedule, then you make your arrangements.

所以，你们一知道时间表，就安排计划吧。

麻省理工公开课 - 固态化学导论课程节选