All your TA's have either already have their extra office hours, or there are some that will be going on tonight or tomorrow, so keep those in mind as your finishing up your studying for the exam.

你们的助教们有的已经做过额外的答疑，而有的会在今天晚上或者明天答疑，因此在你复习准备,考试的时候不要忘了这些。

麻省理工公开课 - 化学原理课程节选

Otherwise, we don't have enough seats, or we don't have enough test papers and so on. By the way, on the tests, you will be getting tomorrow these handouts that you can use in working the homeworks , so when you are taking the test, you are allowed to bring in the copy of the periodic table of the elements.

否则，我们就没有足够的座位，或者没有足够的考试卷子,顺便说一下，在测试当中，你们明天会拿到这些讲义,就可以用来做作业了,当你们在做测试时，你们可以带来,元素周期表。

麻省理工公开课 - 固态化学导论课程节选