If you don't make it to class, contact your TA, your recitation instructor, and you can take a makeup within a week of the time of original test.

如果你不能来上课，联系你们的助教，背诵课的老师，你可以在测试后那个礼拜内,找时间补回来。

麻省理工公开课 - 固态化学导论课程节选

So, do your TA proud today and see if you can be part of the recitation that gets the most correct in terms of a percentage.

因此，让你的助教感到自豪,也看看你是否,在答题正确率最高的讨论小组。

麻省理工公开课 - 化学原理课程节选